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问题 多项选择题

钢结构紧固件连接中，连接薄钢板采用的（），其规格尺寸应与被连接钢板相匹配，其间距、边距等应符合设计要求。

A.自攻钉

B.拉铆钉

C.螺钉

D.射钉

E.压铆钉

答案

参考答案：A, B, D

阅读理解

Lingling’s plan (计划)
 Monday:  5:30pm ---play basketball with Alice
Tuesday:  11:00am---see a film
Wednesday: 9:00am---watch a football match
Thursday: 10:30am---go shopping
Friday:   morning---go to the park
 Saturday: evening---have dinner with Tom
 
Daming’s plan
 Monday:  3:00pm ---do homework
Tuesday:  5:30pm---play computer games
Wednesday: 2:00pm---meet some friends
Thursday: 7:00am---have breakfast
Friday:   evening---read books
Saturday: 8:00pm---go to Jim’s birthday party
 
根据所给材料，选择最佳答案。
小题1:On Thursday, Lingling wants(想)to ________.
A．have dinner with TomB．go shopping
C．play basketball with AliceD．go to the park
小题2:Daming is going to  _________ on Tuesday.
A．do his home workB．read books
C．play computer gamesD．play football
小题3:Jim’s birthday party is on _________.
A．Wednesday morningB．Saturday evening
C．Thursday afternoonD．Friday morning
小题4:Going shopping is_________ plan.
A．Lingling’sB．Daming’sC．Tom’s D．Lilei’s
小题5:Who has dinnner with Lingling?
A．AliceB．DamingC．TomD．Tony
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问答题

马克思说：“商品中包含的劳动的这种二重性，是首先由我批判地证明了的。这一点是理解政治经济学的枢纽。”
谈谈你对马克思这一论述的理解。
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