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问题 单项选择题

在某些情况下，客观需要某小区能覆盖超过35km更远的地方（沿海与草原等），此时可采用（）技术来实现远距离覆盖。

A.扩展小区技术

B.跳频小区技术

C.扩频小区技术

D.功控小区技术

答案

参考答案：A

单项选择题

对流行性腮腺：炎腮肿的护理，以下不合适的是

A．用温盐水漱口，保持口腔清洁

B．宜进易消化和清淡的软食

C．腺肿处可用醋调青黛散外敷

D．肿胀处可冷敷

E．可进食水果、果汁和补充维生素C片
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填空题

根据句意和汉语注释，写出单词的正确形式。

1. Tim's brother is so _____ (care) that he often forgets to do his homework.

2. Those _____ (visit) will stay in our school for two days.

3. It's very important for us to keep _____ (save).

4. They were too tired to walk any _____  (far).

5. Mary can learn Japanese by _____ (she).
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