失败的原因之一是他的粗心大意。该句话翻译成英文是（)。

A.We were impressed his straightforward answers.

B.We were impressed by his answers.

C.We were impress his straightforward answers.

D.We were impressed by his straightforward answers.

A.He bought two beer and three chocolate

B.He bought two bottles of beer and three chocolate

C.He bought two bottles of beer and three bars of chocolate

D.He bought two beer and three bars of chocolate

A.表层原因是推进过快

B.深层原因之一是，宏观经济条件不成熟，体现在产品定价紊乱、金融市场不完善等方面

C.深层原因之一是，金融条件不成熟，体现在产品定价紊乱、金融市场不完善等方面

D.深层原因之一是，宏观经济条件不成熟，体现在经济增速极不稳定、通胀率居高不下、国内巨额财政赤字等方面

A.泵排量过大

B.泵排量过小

C.欠载保护电流过大

D.欠载保护电流过小