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【判断题】
重力坝的基本剖面为三角形,原因是上游水压力为三角形分布力,水越深,水压力越大,所以需要更多的面积来承受。A.
正确
B.
错误
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举一反三
【单选题】1964年世界医学大会颁布、又经过多次修订的关于医学实验的医学伦理文件是
A.
《赫尔辛基宣言》
B.
《悉尼宣言》
C.
《日内瓦协议法》
D.
《纽伦堡法典》
E.
《阿拉木图宣言》
【单选题】1964年世界医学大会颁布、又经过多次修订的关于医学实验的医学伦理文件是（ ）
A.
《赫尔辛基宣言》
B.
《悉尼宣言》
C.
《日内瓦协议法》
D.
《阿拉木图宣言》
【单选题】—Why didn’t you come to the meeting yesterday? —I_________,but my old father came unexpectedly.
A.
had to
B.
was going to
C.
want to
D.
ought to
【简答题】听对话,回答问题。 1. Why didn't Bob go fishing on his day off? A. It rained. B. His father didn't agree. C. He didn't feel well. 2. What did Bob do at last? A. Stayed at home and studied. B. Saw the dolphin s...
【单选题】Why didn’t Linda’s father want her to study in the United States?
A.
Because he didn’t like the United States
B.
Because he didn’t want Linda, his only child, to leave China.
C.
Because he couldn’t accept the American culture.
D.
Because he didn’t think the United States is a safe country for a young girl.
【单选题】-Why didn't you turn up at the meeting? -I ________ for a longdistance call from my father in England. [ ]
A.
waited
B.
had waited
C.
was waiting
D.
have been waiting
【单选题】Why didn't the king believe the old man's story? Because ______.
A.
his father never told him anything about a jar of gold
B.
there wasn't enough gold to fill the jar with in his country
C.
he didn't want to return the old man the jar of gold
【单选题】The reason _____ Malcolm didn't study art was _____ his father didn't want him to. [ ]
A.
for; because
B.
why; because
C.
why; that
D.
of; which
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