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问题 单项选择题

当目标机动过大，导致ARPA跟踪目标丢失，这时可重新对目标加以录取，在目标机动期间及重新稳定跟踪之前，ARPA所提供的信息是（）。

A、可靠的

B、不可靠的

C、可用评估运动态势

D、A+C是对

答案

参考答案：B

问答题 案例分析题

某患者有过不洁性交史，1个月后外生殖器出现丘疹状硬结而就诊。检查发现其硬结呈圆形，基底清晰，边缘隆起，质硬，有无痛性溃疡。初步怀疑是梅毒螺旋体感染：(1)如果我们取该患者硬结的分泌物，应该采取哪种检查方法?(2)如果标本染色后镜检，最好选择下列哪种染色法?
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句型转换

改写句子。

1. They are going to be teachers when they leave Beijing Normal School. (对换线部分提问)

    _______ ______ they going _______ _______ teachers?

2. I am going to make a soccer team when I grow up. (用My brother改写)

    My brother _______ _______ make a soccer team when _______ ______ up.

3. I am going to Beijing in 2008. (对换线部分提问)

    _______ ______ _______ _______ in 2008?

4. My father said he is going to live in a beautiful place when he retires. (同义句转换)

    My father said he is going to live in _______ ______ when he retires.

5. She did some hard work last week. (否定句)

    She _______ _______ ________ _______ hard work last week.

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