问题
单项选择题
()as the chemical extinguisher agent, should be used for a an electric fire.
A.Dry chemical or foam
B.Foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
答案
参考答案:D
()as the chemical extinguisher agent, should be used for a an electric fire.
A.Dry chemical or foam
B.Foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
参考答案:D
根据对话内容。从方框内的选项中选出能填入空白处的最佳选项。 | |
A: Do you like animals? B: 1 A: Let's go to see animals this afternoon. There is a new zoo in our city. B: 2 A: 3 B: Dolphins! A: 4 B: Because they are kind of smart. I like to watch a dolphin show. A: Well, I like elephants. B: Why do you like them? A: 5 They can do lots of things with their noses(鼻子).
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