由于往复泵的吸入和排出液体的过程是不连续的，因此排出的（）不均匀。A、压力 B、流量

Girls in Japan love the month of March. March the third is Japanese Girls' Day, or people also call it the Doll(洋娃娃) Festival.

On this day, girls wear beautiful kimonos (和服). Their parents put lovely dolls on a shelf. They hope that the dolls can bring health and happiness to their girls. There are seven tiers (层) of dolls. Dolls of the king and queen are always at the top of the shelf.

Girls usually invite good friends to their homes on this day to celebrate(庆祝)it. They sit around the dolls, singing, dancing and talking. The next day parents have to put the dolls away quickly. According to Japanese tradition, if they don't do that, they may find it hard to marry off (嫁出) their daughters later in life.

小题1:When is the Doll Festival?

A．February 3rd.

B．March 3rd.

C．March 2nd.

D．May 3rd.小题2:What do girls wear on that day?

A．They wear short skirts.

B．They wear new T-shirts.

C．They wear school clothes.

D．They wear traditional (传统) Japanese clothes.小题3:What is on the top of the shelf?

A．Dolls of the king and queen.

B．Dolls of the parents.

C．Dolls of their daughters.

D．Dolls of the girls' friends.小题4:Why do parents put dolls on the shelf?

A．Because the dolls are very lovely.

B．Because their daughters ask them to do it.

C．Because the king and the queen want them to do it.

D．Because dolls can bring health and happiness to their daughters.小题5:Which of the sentences is NOT true?

A．The girls sing and dance around the dolls on that day.

B．The girls invite their friends to celebrate the festival together.

C．The shelf has seven tiers of dolls on it.

D．On March 3rd, parents should put the dolls away quickly.

非洲大陆主要位于五带中的（　　）

A．北寒带

B．热带

C．北温带

D．南温带

该病人首先考虑的诊断是

A．自发性气胸

B．主动脉夹层分离

C．乙绞痛发作

D．急性心肌梗死

E．急性胰腺炎

She told her boss what she had ________ mind.[ ]

A. in         

B. to        

C. on         

D. by

萃取岗位停车时，冷凝液汽提塔应在（）停。

A、己内酰胺萃取停车时

B、反萃取停车时

C、硫铵汽提塔停车时

D、萃取岗位都已停完时