问题 多项选择题

下列说法哪些是正确的()。

A.对于水溶性甲、乙、丙类液体火灾,必须采用液上喷射泡沫方式,且必须选用抗溶性泡沫液

B.对于非水溶性甲、乙、丙类液体火灾,当采用固定顶储罐时,可以采用液上喷射泡沫方式,也可以采用液下喷射泡沫方式

C.对于非水溶性甲、乙、丙类液体火灾,采用液上喷射泡沫方式时,可以选用蛋白、氟蛋白、水成膜或成膜氟蛋白泡沫液

D.对于非水溶性甲、乙、丙类液体火灾,采用液下喷射泡沫方式时,必须选用氟蛋白、水成膜或成膜氟蛋白泡沫液

E.内浮顶储罐和外浮顶储罐不应选用液下喷射泡沫方式

答案

参考答案:A, B, C, D, E

选择题
阅读理解

第二部分:阅读理解(共20小题;每小题2分,满分40分)

阅读下面短文,从A、B、C、D四个选项中,选出最佳选项。

A

How Americans Began to Eat Tomatoes

People have strange ideas about food. For example, the tomato is a kind of very delicious vegetable. It is one of useful plants that can be prepared in many ways. It has rich nutrition and vitamin in it. But in the 18th century, Americans never ate tomatoes. They grew them in their gardens because tomato plants are so pretty. But they thought the vegetable was poisonous (有毒的). They called tomatoes “poison apples.”

President Thomas Jefferson, however, knew that tomatoes were good to eat. He was a learned man. He had been to Paris, where he learned to love the taste of tomatoes. He grew many kinds of tomatoes in his garden. The President taught his cook a way for a cream of tomato soup. This beautiful pink soup was served at the President’s party. The guests thought the soup tasted really good. They never thought their president would serve his honored guests poison apples. Jefferson never spoke to his honored (忠实的) guests about the fact.

36. After you read the passage, which of the following do you think is true?

A. Americans never ate tomatoes after they began to plant them.

B. Americans didn’t eat tomatoes before 19th century.

C. Even now Americans don’t eat tomatoes.

D. In the 18th century Americans ate a lot of tomatoes.

37. The passage tells us that Jefferson was a President who learned to love the taste of tomatoes___.

A. while he was in Paris              B. when he was a little boy

C. because his parents told him so       D. from books

38. According to the text, _______ made the beautiful pink soup served at the President’s party?

A. the President himself       B. a French cook

C. the President’s cook       D. the President’s wife

39. From the passage we know all the honored guests invited by Jefferson were       .

A. people from other countries       B. from France

C. people of his own country        D. men only

40. According to the passage, which of the following is NOT true?

A. All of the guests knew the soup that was served at the President’s party was made of tomatoes.

B. All of the guests thought the soup which was prepared by the President’s cook was nice.

C. All of the guests thought the taste of the beautiful pink soup was nice.

D. None of the guests knew that their president would serve his honored guests poison apples.