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【单选题】
振动和波动既有区别又有联系,下述正确的是A.
振动是单个质点的来回运动，波动是各个质点的振动
B.
有了机械振动，就必定有机械波
C.
都是质点的振动，对媒质中的每个质点来看，是振动，就媒质的全体来看是波动
D.
媒质质点的迁移形成机械波
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举一反三
【单选题】What does the man mean when he says 'It sounds like you've been reading 198'?
A.
He means that the woman is pessimistic.
B.
He means that the woman is reading the 1984 novel.
C.
He means that the woman is practical.
D.
He means that the woman should learn something new.
【单选题】What does the woman think of the man?
A.
The man nags too much.
B.
The man is a lazy bone.
C.
The man is responsible and caring.
D.
The man spends too much money.
【单选题】What (does) Mr. Johnson like? He's a (friendly) sort (of man). I (like) to work with him.
A.
does
B.
friendly
C.
of man
D.
like
【简答题】How does Japan differ from most Western countries, according to the author?It is still______.
【简答题】What kind of fruit does the man like better
【简答题】看图,写出相应的单词。 1. Is that a _______ ball? 2. Does her brother have a _______ ball? 3. We don't have a tennis _______. 4. They play ______ every day. 5. Zhang Ming plays ______ every day.
【单选题】.John sold the camera yesterday which his brother ________ him as a birthday present from Japan.
A.
has sent
B.
had sent
C.
was sending
D.
would send
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