A.

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The advantages of the first-order predicate logic expression are () a, naturalness B, accuracy C, tightness D, and easy to realize the answer: naturalness; Accuracy; Tightness; Easy to realize ————————– 5.

B.

(4) The addition of the signal in the time domain corresponds to the addition of its frequency spectrum, so the maximum frequency of the signal is 2.

The power spectral density describes the digital characteristics of the process statistical characteristics from the perspective of (), while the autocorrelation function describes the most important digital characteristics of the process statistical characteristics from the perspective of (), which constitutes ().

Time, frequency, Fourier transform pair B, frequency, time, Fourier transform pair C, time, frequency, Laplace transform pair D, frequency, time, Laplace transform pair answer: frequency, time, Fourier transform pair ————————– 2.

the transistor amplifies small current into large current C.

simultaneous interpreting is usually carried out in the simultaneous interpreting booth.

Continuous time signal, the frequency band of which is () a, B, C, D.

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Simple and convenient, the answers are basically seconds! In case of a large number of inquiries, the maximum delay is 1-3 seconds.

Reimbursement accounting for bad debts B.

Answer: simultaneous interpreting requires microphones and earphones; Simultaneous interpreting is usually carried out in the simultaneous interpreting box booth; The speech speed of simultaneous interpreting is limited by the speaker’s speech speed ———————— 4.

(3) The product of the signal in the time domain corresponds to the convolution of its frequency spectrum, so the highest frequency of the signal is 3.

“] ———————————- 12.

D.

What belongs to its pole is: () a, 0b, – 2c, 2D, 1 answer: 2 ——————————————— 14.

A.

operating accounting for active accounts D Responsibility accounting answer: C —————————————- 7.

In MATLAB, which of the following functions is used to calculate the spectrum of discrete periodic signals: () a, ABS B, angle c, quad8d, FFT answer: FFT —————————————- 8, () can help cope with stress.

The following statement is correct for the essence of the amplification effect of the transistor: a.

answer: 200 ————————– 6.

A.

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Psychological trait B, relaxation training c, personality type D, stress response answer: relaxation training ——————– 9.

When sampling, the minimum sampling frequency is 6.

the speed of simultaneous interpreting is limited by the speaker’s speed.

If the transformation of a causal sequence is, then () a, 0b, 1C, 2D, 5 answer: 1 ————————– 3 [multiple choice] which of the following descriptions about simultaneous interpreting is correct? A.

the transistor amplifies small energy into large energy B.

Simultaneous interpreting requires microphones and earphones.

simultaneous interpreting requires interpretation notes to relieve memory pressure.

(1) according to the sampling theorem, the minimum sampling frequency fam = 4f% (Hz).

In MATLAB, which function in the west is used to obtain the LTI system model when solving the zero state response of the continuous time system: () a, lsimb, TFC, impacted, step answer: TF ————————————————- 13.

The events that cause our stress include negative events and positive events (such as going to school and getting married) will not bring pressure..

Please understand.

(2) the convolution of the signal in the time domain corresponds to the product of its spectrum, so the maximum frequency of the signal is fa (Hz), and the minimum sampling frequency = 2 when sampling the signal.

C.

The classification method of the following signals is incorrect: () a, digital signal and discrete signal B, deterministic signal and random signal C, periodic signal and non periodic signal D, continuous signal and discrete signal answer: digital signal and discrete signal —————————— 11 It is known that the highest frequency of the real signal is, and try to calculate the minimum sampling frequency for each signal without aliasing: () a, B, C, D Answer: “the compression of the signal in the time domain corresponds to the expansion of its spectrum in the frequency domain, so the maximum frequency of the signal is 2.

external accounting C.

Cast in Sockets

In modern enterprise accounting system, management accounting is also called ().

the transistor amplifies small voltage into large voltage D The triode controls the larger current with the smaller current answer: the triode controls the larger current with the smaller current —————————— 10.

When sampling, the minimum sampling frequency is 4.