题目内容
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[主观题]
【单选题】She （) to study hard. （Fill the blank with a proper word.)
A、have
B、has
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发布时间：2022-01-07
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A、Bombay
B、Bomb
C、Bubble
D、Baby
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第2题
Assume that Z(t) = X(t) + Y(t), where X(t) and Y(t) are jointly stationary random processes.
A、Z(t) is a stationary process
B、Sz(f) = Sx(f) + Sy(f)
C、Sz(f) = Sx(f) + Sy(f) + Sxy(f) + Syx(f)
D、If the two processes X(t) and Y(t) are uncorelated and at least one of the processes is zero mean，then Sz(f) = Sx(f) + Sy(f)
第3题
Directions: Fill in the blank in the following sentence with an exact word from the text. Friends and loved ones often proclaim they've just ate when, in fact, they've just eaten. (), it doesn't make any sense to criticize our students.
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第4题
American philosopher and historian Tilly held the opinion that _____ had laid the foundation of the later western philosophy.
A、Hebrew
B、British
C、Greek
D、America
第5题
4.So little _____ agree on the plan that they could not settle their difference.
A、did they
B、do they
C、they did
D、they did not
第7题
【多选题】What is Chegee?
A、It is a beverage of fermented mare's milk.
B、It is mare's milk.
C、It is cow's milk.
第8题
【单选题】Where did Mongolians import the brick tea?
A、It has to be imported from southern part of China.
B、It has to be imported from northern part of China.
