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【单选题】
目前我国职业性急性中毒发生最多的是（）中毒。A.
铅
B.
硫化氢
C.
苯
D.
一氧化碳
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【简答题】Van Gogh's works of old men were done with............,...,.............. and understanding; and his............................... feeling about the old is prominently embodied in his "Sorrowing Old ...
【单选题】By 1860, which party had established itself as the major party in the North?
A.
The Republicans
B.
The Democratic
C.
The Conservative
D.
None of them
【单选题】21岁男大学生,白天参加运动会长跑比赛,晚饱餐后入睡,翌日晨起四肢瘫痪,查血清钾降低,心电图出现 U波, ST段下移,可能的诊断是
A.
急性炎症性脱髓鞘性多发性神经病
B.
脊髓出血
C.
低钾型周期性瘫痪
D.
急性脊髓炎
E.
癔症性瘫痪
【简答题】听下面一段较长的对话，回答第1-2题。 1. When will the man fly to London? [ ] A. On Wednesday. B. On Monday. C. On Friday. 2. How long does it take to get to London by air? [ ] A. 3 hours. B. 2 hours. C. 5 hour...
【简答题】阶跃型光纤的单模传输条件是（）
【简答题】试证明n维列向量组α1,α2,…,αn线性无关的充分必要条件是 其中αiT表示列向量αi的转置(i=1,2,…,n)．试证明n维列向量组α 1 ,α 2 ,…,α n 线性无关的充分必要条件是 任一n维向量都可以由它们线性表示 其中α i T 表示列向量α i 的转置(i=1,2,…,n)．
【单选题】Which of the following statement is not true?
A.
Vincent van Gogh was a Dutch painter.
B.
Vincent van Gogh was influenced by impressionists.
C.
Vincent van Gogh never left Holland.
D.
Some of van Gogh's works were painted at Arles in the south of France.
【多选题】对于中标通知书的法律效力下列说法不正确的是（ ）。
A.
中标通知书就是正式合同
B.
中标通知书是要约邀请
C.
中标通知书是要约
D.
中标通知书是承诺
E.
中标通知书只是单方意思表示
【单选题】By 1860, which party had established itself as the major party in the North?
A.
the Republicans
B.
the Democratic
C.
the Conservative
D.
None of them
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