A=2×2×3×5，B=2×3×3×5，A与B的最小公倍数是______．

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问题填空题

答案

A=2×2×3×5，

B=2×3×3×5，

所以A与B的最小公倍数是2×3×5×2×3=180；

故答案为：180．

阅读理解

阅读屋。判断下列句子，正确的画“√”，错误的画“×”。

Boy: Excuse me. Where is the library?

Girl: Well, just go straight down this street and turn right at the lights.

Boy: I don't understand. Please speak slowly.

Girl: Sure! Go straight down this street. You'll see some traffic lights. Turn right at the lights.

Then you will see the library.

Boy: Is that far from here?

Girl: No, I can show you. Follow me, please.

Boy: Thanks.

Girl: You're welcome.

( ) 1. The girl helps the boy.

( ) 2. The girl wants to go to the library.

( ) 3. The library is near the lights.

( ) 4. The library is far.

单项选择题

联锁条件达到设定值，但联锁没有投用时，（）。

A、可在报警画面中查询到联锁条件报警记录

B、联锁条件报警不会出现

C、可在报警画面中查询到联锁触发动作记录

D、联锁条件报警和触发动作记录同时在报警画面中查询到