关于x的方程ax-2=0有正整数解,则整数a的值是( ) A.2 B.1或-2

题型:选择题

问题:

关于x的方程ax-2=0有正整数解,则整数a的值是(  )

A.2

B.1或-2

C.1

D.1或2

考点:一元一次方程的解法
题型:选择题

Some time ago I discovered that one of my chairs had a broken leg. I didn’t think there would be any difficulty in getting it mended, as there are a whole lot of antique(古董) shops near my home. So I left home one morning carrying the chair with me. I went into the first shop expecting a friendly reception. I was quite wrong. The man wouldn’t even look at my chair.

The second shop, though slightly more polite, was just the same, and the third and the fourth, so I decided that my approach must be wrong, and I should try another way.

I entered the fifth shop with a plan in my mind. I placed the chair on the floor and said to the shopkeeper,” “Would you like to buy a chair?” He looked it over carefully and said, “Yes, not a bad chair. How much do you want for it, sir?” “Twenty pounds,” I said. “OK,” he said, “I’ll give you twenty pounds.” “It’s got a slightly broken leg,” I said. “Yes, I saw that, it’s nothing.”

Everything was going according to plan and I was getting excited. “What will you do with it?” I asked. “Oh, it will be easy to sell once the repair is done.” “I’ll buy it,” I said. “What do you mean? You’ve just sold it to me,” he said. “Yes, I know but I’ve changed my mind. I am sorry. I’ll give you twenty-seven pounds for it.” “ You must be crazy,” he said. Then, suddenly the penny dropped. “I know what you want. You want me to repair your chair.” “You’re right,” I said. “And what would you have done if I had walked in and said, “Would you mend this chair for me?” “I wouldn’t have agreed to do it,” he said. “We don’t do repairs, not enough money in it and too much trouble. But I’ll mend this for you, shall we say for a fiver(五英镑钞票)?” He was a very nice man and was greatly amused by the whole thing.

小题1:We can learn from the text that in the first shop the writer _________.

A.was rather impolite

B.was warmly received

C.asked the shopkeeper to buy his chair

D.asked the shopkeeper to repair his chair小题2:The underlined word “approach” in the second paragraph means _________.

A.plan for dealing with things

B.way of doing things

C.idea of repairing things

D.decision to sell things小题3:The expression “the penny dropped” in the last paragraph means the shopkeeper _______.

A. saw the writer’s purpose

B.accepted the offer

C. changed his mind

D.decided to help the writer小题4:How much did the writer pay?

A.£ 5.

B.£ 7.

C.£ 20.

D.£ 27.小题5:From the text, we can learn that the writer was _________.

A.honest

B.careful

C. funny

D.clever

题型:选择题

()是欧洲历史上对心理现象作过系统描述的第一人。《论灵魂》是西方心理学史上第一部关于心理学的专门著作。灵魂的功能可分为两类:认识功能、动求功能。这种划分方法是西方心理学史上最早的知与意得两分法。

题型:选择题

该病首选方药是:

A.木香顺气散加减

B.良附丸加减

C.大承气汤加减

D.小建中汤加减

E.少腹逐瘀汤加减

题型:选择题

对净资产收益率指标,下列表述错误的是( )。

A.指标反映企业盈利能力,且是一个核心指标

B.指标反映企业的销售能力

C.该指标越高越好,企业净利越多

D.该指标反映企业资产利用的综合效果

E.指标反映企业经营风险的程度

题型:选择题

按照()的观点,菲利普斯曲线所阐述的通货膨胀率和失业率之间的替代关系是不存在的。

A.凯恩斯主义

B.货币主义

C.供给学派

D.理性预期学派

更多题库