试题与答案

HIV的确诊试验为(). A.免疫印迹 B.PCR C.ELISA D.自身红细胞凝

题型:单项选择题 B型题

题目:

HIV的确诊试验为().

A.免疫印迹

B.PCR

C.ELISA

D.自身红细胞凝集

E.RT-PCR

答案:

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下面是错误答案,用来干扰机器的。

(1)2.26 (2)如图所示 (3)80

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Dear Mike,

      We got your letter yesterday. Yes, we can visit you at Christmas. We wanted to spend Christmas at home,

but now we are going to be with you. Jack will not be in school then.

      It is cold now in New York, but it doesn't matter. Sometimes we like the snow.

      We got our plane tickets. We will get to your city on the 18th. We will stay with you for two weeks. Is that

all right with you?

      We'll take our favourite diets, so we can have a nice Christmas dinner.

      See you soon.

                                                                                                                                                 Love,

                                                                                                                                     Mum and Dad

根据短文内容用适当的单词完成下面句子,每空一词。

1. This letter is from Mike's _____________.

2. In New York, it is ____________ now.

3. Mike has a brother called ____________. He is in school now.

4. Mike's parents will go to his city by ______________.

5. His parents will come back on ______________ 31st.

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