到施工现场的钢筋,应附有出厂证明或(),否则就认为是不合格产品。进场钢筋还要进行(),检验合格后才可使用。
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钢筋按化学成分分为( )
A. 碳素钢
B. 低合金钢
C. 圆钢
D. Ⅰ-Ⅳ级钢
Section B8.A) About 150 years agoB) About 115 years agoC) About 120 years agoD) About 100 years ago9.A) BoringB) DifficultC) InterestingD) Satisfactory10.A) Its locationB) Its developmentC) Its populationD) Its history11.A) It is modernB) It is crowdedC) It is smallD) It is quiet12.A) She is in poor healthB) She failed a testC) She hasn’t enough moneyD) She hasn’t got any offer13.A) Show his ID cardB) Fill in a formC) Write a reportD) Pay some money14.A) She has her leg brokenB) She fell from a bicycleC) She feels a back painD) She has got a headache
Section A1.A) Let’s have a breakB) This way,pleaseC) Don’t mention itD)No,thank you2.A) On MondayB) John SmithC) Take it easyD) It’s too late3.A) How do you do?B) It doesn’t matterC) Yes, pleaseD) Mind your step4.A) I am afraid notB) Never mindC) Hurry upD) Have a good time5.A) Go ahead, pleaseB) Yes, I amC) I’d love toD) He’s from China6.A) Oh, I seeB) Here it isC) It’s over thereD) Yes, of course7.A) Go on, pleaseB) Two dollarsC) Sure, I willD) Here you are