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【多选题】
一生发明了哪些对后世具有重要影响的物件A.
锯子
B.
曲尺
C.
云梯
D.
石墨
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反馈参考答案：
举一反三
【简答题】One afternoon, Bart is walking his dog, Toby, in the park near his house. Toby sees a black cat under a big tree and runs after it. Bart is a little angry that Toby runs away. But he has to look for h...
【简答题】下面是Tim和Mary的对话，请从方框中选择恰当的句子补全对话 M: H ello, Tim．How are you? T: 1__ What about you, Mary? M: I'm OK, thanks．Do you like some tea? T: 2__ Do you have any orange juice(果汁)? M: Of course．4__ T: Thanks ...
【单选题】If the yield on short-term securities is greater than the yield on comparable long-term securities, the yield curve will have a
A.
positive slope.
B.
negative slope.
C.
constant slope.
D.
zero slope.
【单选题】汪女士,29岁,停经49天、阴道少量出血1天,轻微下腹痛6小时。妇科检查:宫口未开,子宫增大如孕7周大小,妊娠试验阳性,首选处理为
A.
肌注黄体酮保胎
B.
B超检查了解胚胎发育情况
C.
紧急作凝血功能检查
D.
立即行吸宫术
E.
宫腔镜检查
【简答题】将圆截面压杆改成面积相等的圆环截面压杆,其它条件不变,其柔度将 ,临界应力将 。
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