________ they won the game was _________爱下问搜题

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问题选择题

________ they won the game was ________ we had expected. [ ]

A. That; which

B. Whether; that

C. What; that

D. That; what

答案

答案：D

单项选择题

HIV抗体初筛阳性的标本要进行确认试验，常用的方法是

A．酶联免疫吸附试验(ELIS

B．免疫印迹试验(W

C．多聚酶链反应(PC

D．分支DNA信号扩大试验(bDNA技术)

E．核酸序列扩增试验(NASB

问答题简答题

比较禾本科植物根与双子叶植物根的初生结构的区别。