在进行水准测量时,其水准测量线路的布设形成一般有()。
A.附合水准路线
B.闭合水准路线
C.水准支线
D.交叉水准线路
E.重合水准线路
参考答案:A, B, C
根据短文内容,完成下面的任务。
Mrs. Smith is in a store. She looks for a school bag for her 7-year-old son. The clerk shows her a yellow one, but she says her son does not like the color. Then the clerk shows her a brown one. (1) She says her son likes the color, but it is too small. The clerk says they will have some big ones next week. (2) _tells, Mrs. Smith, her, telephone, number, the, clerk. She asks the clerk to call her when the big brown school bags are in the store. Mrs. Smith says goodbye to the clerk and then goes home.
任务一、回答下列问题。
小题1:What does Mrs. Smith want to buy?
小题2:Why doesn’t Mrs. Smith buy the yellow one?
小题3:What does the clerk do when the big brown ones are in the store?
任务二、将短文中(1)处划线句子翻译成汉语。
小题4:_____________________________________________________________
任务三、将短文中(2)处的单词连接成一个意义完整的句子。
小题5:____________________________________________________________
低熔点铅中成分最大的是()。
A.铋
B.铅
C.铝
D.镉
E.锡