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【单选题】
Passage 1 We have just moved into a new house and I have been working hard all morning. I havebeen trying to get my new room in order. This has not been easy because I own over a thousand books. To make matters worse, the room Is rather small, so I have temporarily put my bookson the floor. At the moment, they cover every inch of floor space and in fact I have to walkon them to get in or out of the room. A short while ago, my sister helped me to carry one of my old bookcases up the stairs She went into my room and got a big surprise when she saw all those books on the floor This is the prettiest carpet I have ever seen. she said. She watched it carefully for some time, and then added, "You don t need bookcases at all. You can sit here in your spare time and read the carpet 16. The writer owns over a thousand books so ___. A. he can't get them on to his bookcases B. he can't get in and out of he room C. his sister can't get into his room D. It is difficult for him to get his room in order
A.
B.
C.
D.
D
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【单选题】枸杞子贮藏中易发霉变色,是因为含()
A.
淀粉
B.
水分
C.
构杞子多糖
D.
挥发油
【单选题】可表达HLA-Ⅰ类分子的无核细胞是
A.
成熟红细胞
B.
淋巴细胞
C.
血小板
D.
树突状细胞
E.
胸腺上皮细胞
【简答题】I need some time to reflect what has just happened.
【单选题】(题共用备选答案)
A.
成熟红细胞
B.
淋巴细胞
C.
血小板
D.
胸腺上皮细胞
E.
树突状细胞 可表达HLAI类分子的无核细胞是 查看材料
【单选题】构杞子贮藏中易发霉变色,是因为含( )
A.
淀粉
B.
水分
C.
枸杞子多糖
D.
挥发油
【单选题】可表达HLAⅠ类分子的无核细胞是
A.
成熟红细胞
B.
淋巴细胞
C.
血小板
D.
胸腺上皮细胞
E.
树突状细胞
【单选题】I need some time to ____________ before I make the decision.
A.
think through
B.
think about
C.
think over
D.
think up
【单选题】I need some time to _______ on what has just happened.
A.
continue
B.
reflect
C.
walk
D.
share
【单选题】根据阿贝成像理论,如果在频谱面上设置各种空间滤波器,挡去频谱某一些空间频率成份,则将会使像发生变化。根据阿贝成像原理,如果在频谱面上放置一个小孔滤波器,下面有关成像的描述中正确的是( )。
A.
像的清晰度将下降。
B.
物的细节将无法在像中体现出来。
C.
成像不清晰。
D.
一定无法成像。
【判断题】 O- 烃化反应指醇和酚类羟基中氢原子被取代或者是通过醇和酚类羟基与不饱和烃直接加成而在氧原子上引入烃基的反应。 ( )
A.
正确
B.
错误
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