下列有关泵说法正确的是（）。A、泵只能在工作点下工作 B、泵的设计点即泵在指定管路上

阅读理解

     Many different kinds of birds can copy(模仿) the sound of language. African parrots(鹦鹉)

are the birds well-known for this.

     Every December in London, the Bird Show tries to find the best "talking" in the world. One

bird named Prudle stood out among the "talking birds". She was the winner for 12 years. Prudle

was taken from Africa in 1958. A man called Iris Frost in England bought her. Prudle was also the

oldest bird in the world that lived in a cage(笼子). Iris Frost looked after Prudle until Prudle died

in 1994. Prudle was 35 years old.

     A different kind of bird, not a parrot, named Puck was tested in 1993. People found that Puck

knew more English words than Prudle did. He knew more than 1700 words.

1. What kind of birds usually speak best?

A. African parrots

B. The Bird Show

C. Birds found in the zoos

D. English parrots

2. What is Prudle?

A. A prize

B. A cage

C. A bird

D. A test

3. How many years did Prudle win the speaking contest(竞赛) for birds?

A. twelve

B. thirty-five

C. forty-seven

D. thirty-six

4. Why was Puck better than Prudle?

A. He was bigger.

B. He spoke faster.

C. He knew more words.

D. He was younger.

5. How many words did Puck know?

A. about 1600

B. more than 1700

C. less than 1700

D. more than 1600

一条渐近线方程为y=x，且过点（2，4）的双曲线方程为__________.

给下列句子排序。 

1. I don't know. 

2. Where is my book, Danny?

3. Jenny, Where is your book? 

4. Okay,okay! There it is.

5. Hmmm. I don't know.

6. Danny! Where is my book?

正确的顺序是：_______________________________

对急性白血病诱导化疗的目标是（）

A.彻底消灭白血病细胞

B.临床症状缓解

C.使体内白血病细胞减少到10¹⁰以下

D.使体内白血病细胞负荷量减少到10⁹以下，骨髓造血功能恢复，临床症状消失

E.彻底治愈白血病

电子现金是指带有（）标识的银行卡，卡片需要预先存入资金才能使用，可直接进行脱机交易，持卡人无需输入密码，不需要签名。

A、UnionPay

B、UPcash

C、Quick Pass

D、China UnionPay