题目内容

The energy problem is not merely a short-term crisis. Geologists 【1】 that 80 percent of all the oil 【2】 in the US will be used 【3】 before the year 2000. We might even come to the end of our coal reserves, abundant as they are, before another century is over. Americans have been 【4】 this situation suddenly. Many unprepared even to recognize 【5】 , and most of us are unprepared to meet it. We are unprepared 【6】 our habits and traditions, and our national life 【7】 based on a history of material abundance. With about 6 percent of the world’’s 【8】 ,we in the US 【9】 nearly 50 percent of the world’’s energy resources. Such resources within the us 【10】 are still ample by any standards except our own.

A. sources
B. minerals
C. energy
D. reserves

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Experiments in the photography of moving objects ______in both the United States and Europe well before 1990.

A. have been conducting
B. were conducting
C. had been conducted
D. are conducted

S2. To make much progress with them, how should a manager evaluate his subordinates __________________________________________________.

试述诉讼时效的中止和中断。

在会计要素中,资产、负债和所有者权益是企业经营成果的静态反映。( )

A. 对
B. 错

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