问题 多项选择题

下列算法展示了一台自动售货机一次售货的工作流程   步骤1:等待接收一枚硬币;   步骤2:若硬币面值不是0.5元、1元,退回硬币;   步骤3:若投入货款达3元或以上,执行步骤4和5;   步骤4:售出一瓶可乐;   步骤5:退回余额。   关于这个算法正确的说法是()

A.这台自动售货机只会在接受硬币为3元时才放出可乐

B.上述算法采用自然语言表示

C.这台自动售货机在任何情况下也不会售出可乐

D.上述算法属于分支算法结构

E.上述算法属于循环算法结构

答案

参考答案:B,D

解析:售货机在接收到3元或3元以上时都会放出可乐,由于执行一次便退出所以不属于循环结构。

阅读理解

I work in a small shop. It is near a factory. Every day, workers, old ladies and housewives come to the shop to buy things.

I live in a house not very far from the shop. I usually get up at six, have breakfast and then go to work by bike. I take some food along in my lunch box.

I get to the shop at about ten to seven. At seven customers(顾客) begin to arrive. They buy meat, eggs, sugar, soybean, sauce, cooking oil (食用油), salt, candies, biscuits and many other things. We don’t sell(卖) vegetables or fruit. There is a shop for these things nearby. I have my meal at noon from my lunch box. At seven in the evening we close the shop. I tidy things up and then go home for supper.

Some people may think my work isn’t so interesting. But I do my bit for the modernizations(现代化), don’t I?

小题1:What does the “I” do in the passage? She is a ____________.

A.worker

B.customer

C.teacher

D.saleswoman(女售货员)小题2:The shop is a ____________ shop.

A.grocery(副食)

B.vegetable

C.fruit

D.grain(粮食)小题3: How long does she work every day?

A.Five hours.

B.Fourteen hours.

C.Twelve hours.

D.Eight hours.小题4:Her house is _________ the shop. She often goes to work ___________.

A.very far from; by bus

B.very close to; by bike

C.very far from; by bike

D.very close to; on foot小题5:What does she think about her work?

A.She thinks her work is too tired.

B.She doesn’t like having lunch in the shop.

C.She thinks the long-hour work is a pleasure.

D.She likes her work a lot though(尽管) she is busy all day.

选择题