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问题 单项选择题

患儿，5岁。2个月前确诊为风湿热，近日又开始不规则发热，为了确定是否为风湿活动，医生做了下列一些检查，请找出与风湿活动不相关的指标

A．血沉增快
B．C反应蛋白增高
C．抗"O"＞500U
D．心电P-R间期延长
E．血常规白细胞数增高，血红蛋白降低

答案

参考答案：C

补全对话，情景问答
Look, read and match. (给下面的图选择正确的对话并连线)
A. 1. -Are they planting trees?
    -Yes, they are.
B. 2. -What is she doing?
    -She is answering the phone.
C. 3. -What are the monkeys doing?
    -They are climbing a tree.
D. 4. -Is she cooking dinner?
    -No, she isn't. She's doing an experiment.
E. 5. -What does Tim like?
    -He likes collecting leaves.
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多项选择题

工程上长度的基本单位是（）

A、毫米

B、厘米

C、米

D、英尺
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