题目内容

日本血吸虫感染人体后产生的免疫力可以杀伤再进入体内的()

A. 虫卵
B. 雌虫
C. 雄虫
D. 童虫
E. 以上均正确

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丝虫对人体的感染阶段为:

A. 囊尾蚴
B. 囊蚴
C. 丝状蚴
D. 杆状蚴
E. 微丝蚴

They should be res____ for planning and carrying out the financial policies of the company.据首字母提示填空,填完整单词

No final decision has been ult____ taken, but it seems likely that the two companies could merge in the near future.据首字母提示填空,填完整单词

The girl was very upset because she could not get these coffee st____ out of the new carpet.据首字母提示填空,填完整单词

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