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Part II Vocabulary and Grammar ( 7 minutes ) Directions: There are a number of incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. 31. The committee members agree to the proposal that the issue ________ to the vote. A) is to be put B) should put C) is D) be put 32. It took me a long time to ________ what you were saying. A) take back B) take off C) take in D) take out 33. He was very embarrassed to hear people speak so ________ of him. A) highly B) mostly C) closely D) freely 34. In China a young person comes of ________ on his/her 18th birthday. A) adult B) age C) year D) growth 35. ______ the plan carefully, he rejected it. A) To have considered B) To consider C) Having considered D) Considering 36. The police are accusing this businessman of having his store ________ up so that he could collect the insurance. A) blow B) blown C) blew D) blowing 37. One of the aims of modern natural science is to ______ universal principles or laws from pieces of data. A) develop B) work on C) invent D) formulate 38. I'll leave him a note ________ he'll know where we are. A) in order B) so that C) now that D) in case 39. "I'd like to have a look at your cameras before I decide on one." "We have several models ________." A) for you to choose from B) for your choice C) for the choice of yours D) for you to choose 40. Televisions enable us to see things happen almost at the exact moment ________. A) which they are happening B) they are happening C) which they happen D) they have happened
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举一反三
【单选题】在电力系统正常状况下,电网装机容量在300万千瓦及以上的供电频率的允许偏差为( )。
A.
±0.2赫兹
B.
±0.5赫兹
C.
±0.7赫兹
D.
±1.0赫兹
【简答题】horn
【单选题】下列关于防腐剂的叙述,错误的是 ( )
A.
防腐剂是指能抑制微生物生长、繁殖的物质
B.
防腐剂浓度大时也有杀菌作用,但毒性增加,故应控制用量
C.
苯甲酸与羟苯脂类防腐剂合用具有防霉与发酵作用
D.
pH 增高,苯甲酸解离度减小,抑菌活性下降
【单选题】下列关于苯甲酸与苯甲酸钠防腐剂的错误叙述为
A.
在酸性条件下抑菌效果较好,最佳pH值为4
B.
相同浓度的苯甲酸与苯甲酸钠盐其抑菌作用相同
C.
分子态的苯甲酸抑菌作用强
D.
苯甲酸与尼泊金类防腐剂合用具有防霉与防发酵作用
E.
pH增加,苯甲酸解离度增大,抑菌活性下降
【简答题】实角 solid horn
【单选题】horn
A.
牛角
B.
示警装置 ; 喇叭
【单选题】horn
A.
喇叭
B.
仪表盘
C.
里程表
D.
油箱
【多选题】下列关于羟苯烷酯类防腐剂的错误叙述为
A.
羟苯酯类无毒、无味,化学性质稳定
B.
羟苯丁酯的抑菌能力最差
C.
在碱性溶液中抑菌作用较强
D.
羟苯酯类防腐剂混合使用具有协同作用
E.
表面活性剂能增加羟苯酯的溶解度,因而可提高其抑菌活性
【单选题】下列关于苯甲酸与苯甲酸钠防腐剂的错误叙述为
A.
在酸性条件下抑菌效果较好,最佳pH值为4
B.
相同浓度的苯甲酸与苯甲酸钠盐其抑菌作用相同
C.
分子态的苯甲酸抑菌作用强
D.
苯甲酸与尼泊金类防腐剂合用具有防霉与防发酵作用
【多选题】养生的主要目的是
A.
保养身体
B.
减少疾病
C.
增进健康
D.
治疗疾病
E.
延年益寿
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