问题
单项选择题 A1/A2型题
与识别半堵孔现象无关的是（）
A.示波器上出现异常波形
B.计数时间延长
C.出现不规则间断声音
D.细胞不能通过微孔计数
E.计数指示灯不规则闪动
答案
参考答案：D
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与识别半堵孔现象无关的是（）
A.示波器上出现异常波形
B.计数时间延长
C.出现不规则间断声音
D.细胞不能通过微孔计数
E.计数指示灯不规则闪动
参考答案：D
Maria lives in the beautiful countryside．She usually gets up early in the morning， 16 she’s never late for schoo1．After getting up，she often showers and has a good breakfast．Then she 17 for school at around 6：30． 18 her home is very far from school，she likes riding her bike better than 19 the bus．It takes her about an hour 20 her bike．It’s so long! On the way，she sings and sings so she always feels 21 ．Also she thinks that it’s good for her health 22 to school by bike． After school she usually goes back 23 with her friend，Linda．Linda’s home is nearer than Maria’s． It’s only three miles from her home 24 schoo1．Linda likes riding，too．And she also thinks that it is a good 25 of transportation．
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