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【单选题】
科学史的作用不包括()A.
帮助我们理解科学是什么
B.
历史材料的基础背景
C.
对当代发明产生直接影响
D.
一般的普及性教育
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皮皮学刷刷变学霸
举一反三
【单选题】—Is Alice still performing? —I'm afraid not. She is said _______ the stage already as she has become a director.
A.
to have left
B.
to leave
C.
to have been left
D.
to be left
【单选题】I'm sorry to have you waiting so long for Marcia, and I'm afraid it'll be ten minutes _______ she comes back. [ ]
A.
before
B.
after
C.
until
【单选题】—How anxious Ruby is! I wonder what on earth she ________. —I’m afraid nobody knows. She is always so strange.
A.
has expected
B.
will expect
C.
will have expected
D.
is expecting
【单选题】----- Why hasn’t she come to the party? ----- I’m afraid she can’t. She is _______ in preparing her graduation paper.
A.
covered
B.
filled
C.
occupied
D.
crowded
【简答题】细小孔隙内的毛细水既受重力作用，也受表面张力即（ ）作用。
【简答题】如何选用接触器?(请使用语音功能回答)
【单选题】赵女士, 22岁,服敌1605中毒,双侧瞳孔缩小,排尿有大蒜味,来急诊就诊后立即进行洗,禁用的洗胃液是
A.
蛋白水
B.
1 ： 15000-20000高锰酸钾
C.
2-4%碳酸氢钠
D.
镁乳
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