病人因右上腹持续钝痛，伴恶寒发热、皮肤黄染入院，检查诊断急性胆囊炎、胆石症，上午情况

About ____ of the teachers in our school ____ young people under thirty.

A．two-five, are

B．second-fifth, is

C．two-fifths, are

D．two-fifth, is

读图，完成下列问题.

1.补绘图上赤道附近洋面上空的大气环流箭头，以表示正确的环流方向。

2.在大洋东部，如果赤道附近海水异常增温，温暖海水沿大洋东岸向南流，并迫使原寒流位置向西偏移，那么，图示大气环流强弱及赤道附近大洋两岸的降水量将如何变化？为什么？

—Do you know _____? 

—Yes, I do, she came here on foot.[ ]

A. where Lucy came from

B. how Lucy came here

C. where did Lucy come from

D. how did Lucy come here

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律性。（）

A.选项A

B.选项B

C.选项C

D.选项D

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