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【单选题】
关于氟乙酰胺中毒哪一项是错误的A.
易造成二次中毒
B.
有特效解毒药
C.
造成脏器细胞变性、坏死
D.
其代谢产物氟乙酸失去毒性
E.
中断三羧酸循环
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举一反三
【单选题】听力原文：They will write to their home office to waive their claim. (6)
A.
They will write to their home.
B.
They will write to their headquarter.
C.
They will ask for their rights.
D.
They will wait for an officer.
【单选题】Questions 5 and 6 Choose the appropriate letters A-D and write them in boxes 5 and 6 on your answer sheet. The greatest outcome of the discovery of the reaction principle was that
A.
rockets could be propelled into the air.
B.
space travel became a reality.
C.
a major problem had been solved.
D.
bigger rockets were able to be built.
【单选题】革兰氏阳性细菌与革兰氏阴性细菌相比，最大的区别是（）。
A.
革兰氏阳性细菌有线粒体，而革兰氏阴性细菌没有
B.
革兰氏阳性细菌有核糖体，而革兰氏阴性细菌没有
C.
革兰氏阳性细菌有荚膜，而革兰氏阴性细菌没有
D.
革兰氏阳性细菌有坚韧而厚度较高的细胞壁，革兰氏阴性细菌没有
【单选题】The word 'tricks' at the end of Paragraph 2 is closest in meaning to.
A.
'experience'.
B.
'cheating'.
C.
'skills'.
D.
'training'.
【单选题】According to the passage, the author thinks of each interview as ______.
A.
a positive experience
B.
a chance to get a perfect job
C.
a chance to meet challenges
D.
one item in the schedule
【简答题】Read and write. 1._____ 2._____ 3._____ 4._____ 5._____ 6._____ 7._____
【简答题】Read and write. (看图填词.)6 1______ 2______ 3______ 4______ 5______ 6______ Word Bank camera glasses dance bag gloves skate
【判断题】16t 以上的起重机有主副两套起升机构,副钩起重量一般为主钩起重量的 1/3 ~ 1/5 。起重量用分数形式表示,分母为主钩起重量,分子为副钩起重量。
A.
正确
B.
错误
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