试题与答案

国标规定,灰分Ad为18%的原煤,采样精密度是()A.±2%; B.±l.8%; C

题型:单项选择题

题目:

国标规定,灰分Ad为18%的原煤,采样精密度是()

A.±2%;

B.±l.8%;

C.±1.5%

答案:

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完成句子。

     It was a dark night. When the car driver went

by the railway station, he saw a young man and

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Star Hotel,” the young man _______ . Hearing that,     2.______________

the driver didn’t f_______ happy. The young man        3.______________

would give him only 3 dollars b_______ the hotel         4.______________

was not far from the railway station. But ________      5.______________

(突然), he had an idea. He took the passenger

through many streets and after a long time, the car

finally ____________ (到达) at the hotel. “Fifteen       6.______________

dollars,” the driver said. “What! Fifteen dollars?

Do you think I’m a ______ (傻瓜) ? Only last week    7.______________

I took a car from the railway station to this s______     8.______________

hotel and I only gave the driver 13 dollars. I know

how much I have to pay for the t________. I won’t      9.______________

pay you one dollar _______ than I paid to the other    10.______________

car driver last week.”

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