皮皮学，免费搜题
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【单选题】
精馏的操作线为直线主要是因为( )A.
理论板假设
B.
理想物糸
C.
塔顶泡点回流
D.
恒摩尔流假设
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皮皮学刷刷变学霸
举一反三
【单选题】The child _________ from his home around 5 o'clock yesterday afternoon.
A.
disappeared
B.
was disappeared
C.
has disappeared
D.
disappears
【单选题】A black car ran over the child yesterday. He saw____ accident in the street.
A.
the
B.
a
C.
an
D.
/
【单选题】The lost child ______ in the park by the police yesterday.
A.
found
B.
was found
C.
is found
D.
was
【单选题】Steve Paul Jobs passed away in America on October 6th, 2001, _____ death made millions of people feel sorrowful. [ ]
A.
whose
B.
which
C.
when
D.
where
【简答题】Yesterday morning Jake and his classmates went to the (child) home.
【单选题】They went through the forest yesterday ______ the lost child.
A.
search for
B.
in search of
C.
in search for
D.
searched for
【单选题】The child didn’t take medicine yesterday evening, did he?_____
A.
No, but I wish he did
B.
Yes, but I wish he did
C.
No, but I wish he had
D.
Yes, but I wish he had.
【单选题】The reason ___ he didn’t attend the meeting yesterday was ___ his child had fallen ill.
A.
that, why
B.
why, that
C.
why, why
D.
that, that
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