仓库存有大批洋葱，少量洋葱开始发芽，防止更多洋葱发芽，采用何

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问题单项选择题

仓库存有大批洋葱，少量洋葱开始发芽，防止更多洋葱发芽，采用何种工艺最佳

A．低温工艺

B．高温工艺

C．脱水工艺

D．阳光照射

E．辐照处理

答案

参考答案：E

解析：辐射处理可抑制发芽，此法处理后，食品的保藏期长。

补全对话，情景问答

根据对话情景,填入恰当的单词。

A: Excuse me. Can I help you?

B: Yes. I want to go to Center Street. Can you tell me the _____1_____ ?

Sure. Now we are in Bridge Street. It's not far from it.

B: Can I _____2_____ there?

A: Err…you can. But you'd better not. Now it's _____3_____. Look at the water on the street.

B: Then can I take a taxi?

A: There is no need to take a taxi. It is near to Center Street. Many _____4____ go there.

B: OK. By the way, where is the bus stop?

A: Go _____5____ his street and you can see it on your right.

B: Thank you very much.

A: You're welcome.

选择题

下列说法正确的是（）

A．单位体积内任何气体的分子数相同

B．质量相同的任何气体的分子数相同

C．在温度相同的条件下，单位体积内任何气体的分子数相同

D．在标准状态下，单位体积内任何气体的分子数相同