某农民在烈日下割麦子，出现头晕、头痛、皮肤干燥、皮肤灼热无汗、嗜睡或抽搐、昏迷，体温

1. I find that it is difficult to learn English well, so I mu.st study harder.

    I find ______difficult_______ _____English well,so I must study harder.

2. He didn't get married until he was in his thirties.

    It was______ _______he was in his thirties ______he got married.

3. We started early so that we could arrive there before 8 o'clock.

    We started early_______ ______ _______arrivethere before 8 o'clock.

4. They hurried up because it was getting dark.

     ________ __________ because it was getting dark _______ they hurried up.

5. It's mad of you to go there alone in such bad weather.

    ________ ________ ________you to go there alone in  such bad weather.

列车管中的过充压力如不能自动消除，将影响行车。

辛亥革命是指（）中国爆发的资产阶级民主革命。

A.1898年

B.1900年

C.1901年

D.1911年

下列胆总管结石合并急性梗阻性化脓性胆管炎时发生的并发症，错误的是（）

A.肝脓肿

B.感染性休克

C.急性胰腺炎

D.结石压迫门静脉引起肝外型门静脉高压症

E.胆道出血

图示木接头，水平杆与斜杆成α角，其挤压面积A_bs为：（）

A.bh

B.bhtanα

C.bh／cosα

D.bh／（cosαsinα）