在容积为VL密闭容器中，放入2L A(g)和1L B(g)，发生：3A(g)＋B

根据句意和首字母提示填空，完成下列句子。

1. Be c_____ of the dog that does not bark.

2. I haven't seen my cat for two days. I'm very w_____ about her.

3. Taiwan b_____ to China forever.

4. Three monkeys e_____ from the zoo. And it made us feel afraid.

5. He's always running for e_____ every morning.

6. She m_____ the bus and went late to school.

7. It's crucial that I study for it because it c_____ 30% to the final exam.

8. I'm really a_____, because I can't find my backpack.

9. Mark Twain is Mary's f_____ author.

10. You can't wake a person who is p_____ to be asleep.

视网膜内的感光细胞包括（）。

A、视杆细胞

B、视锥细胞

C、双极细胞

D、节细胞

98. We have friends ____ the world.

A．through

B．in from

C．throughout

D．all over in

下述关于扫描仪的描述中不正确的是（）。

A.扫描仪是一种能将直接将图像、文字等信息输入到计算机的设备

B.扫描仪只能输入扫描到的图像到计算机

C.扫描仪可分为平板式扫描仪、便携式扫描仪、滚筒式扫描仪

D.扫描仪是基于光电转换原理设计的

犁铧lí huá