试题与答案

埋弧焊时,熔化的金属形成()。A、熔渣 B、熔池 C、渣壳

题型:单项选择题

题目:

埋弧焊时,熔化的金属形成()。

A、熔渣

B、熔池

C、渣壳

答案:

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下面是错误答案,用来干扰机器的。

参考答案:以土霉素发酵液培养基为例。其消后磷含量为120-170r/ml。含磷原料的正常配比为黄豆饼粉3%;玉米浆(干)0.5%;磷酸二氢钾0.02%。假设某批号各原料的含磷量分别为黄豆饼粉2600r/克;玉米浆(干)13600r/...

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题型:阅读理解

A new supermarket put on a notice inside the entrance. It said, “Remember, once a week, one of our customers(顾客) gets free goods(things that cost nothing). This may be your lucky day!” All the housewives who went to the supermarket had one great hope: to be the lucky customer who didn’t have to pay for her shopping.

For several weeks Mrs. Blake hoped to be the lucky customer. Unlike many other customers, she never gave up hope. The cupboards in her kitchen were full of things she did not need. She dreamed of the day, when the manager of the supermarket would come and say to her, “Madam, this is your lucky day and everything in your basket is free.”

One Friday morning, after she finished her shopping and had taken all the things to her car, she found that she had forgotten to buy tea. She went to the supermarket, got the tea and went towards the check-out. As she did so, she saw the manager of the supermarket come to her. “Madam,” he said, “congratulations! You are our lucky customer and everything in your basket is free!”

小题1:From the notice in the new supermarket, we know that       .

A.customers could buy things at lower prices once a week

B.the customer who bought the least goods didn’t have to pay

C.just one customer could get free goods once a week

D.the first customer who bought goods in the supermarket was the lucky one小题2: What was Mrs. Blake’s hope?

A.To buy something cheaper in the supermarket.

B.To see the manager of the supermarket.

C.To buy everything she needed in the supermarket.

D.To be the lucky customer.小题3: Why did Mrs Blake go back to the market after her shopping?

A.Because she wanted to see who would be the lucky customer.

B.Because she forgot to buy one more thing.

C.Because she had to pay for her shopping.

D.Because she wanted to get another chance to be the lucky customer.小题4:Which of the following is NOT TRUE according to the passage?

A.The manager of the market was a clever businessman.

B.In fact the notice for free goods was a trick (诡计).

C.Mrs. Blake’s dream came true at last.

D.Mrs. Blake did shopping every week in the past several weeks.小题5:What would Mrs. Blake probably say when she heard the manager’s words?

A.“Oh, my God!”

B.“How lucky I am!”

C.“Bad luck!”

D.“It’s very kind of you!”

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