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【单选题】
Since Tom ______ downloaded a virus into his computer, he can not open the file now.
A.
readily
B.
horribly
C.
accidentally
D.
irregularly
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举一反三
【单选题】Which word refers to a feeling of liking or wanting someone or something more than someone or something else?
A.
kinship
B.
preference
C.
approve
D.
approval
【单选题】由于甲醛的极性较强,在使用气相色谱检测时需要经过 。
A.
富集
B.
净化
C.
衍生化
D.
加标
【单选题】冠状动脉粥样硬化的好发部位是
A.
左旋支
B.
左前降支
C.
右冠状动脉后降支
D.
右冠状动脉
E.
右冠状动脉前降支
【简答题】你想要一只蝌蚪龙吗?为什么?
【单选题】Which of the word refers to an older, more experienced person who helps you?
A.
mentor
B.
pep talk
C.
financial package
D.
CV
【判断题】The connotation of a word is the thing or idea which it refers to.
A.
正确
B.
错误
【单选题】冠状动脉粥样硬化的好发部位为
A.
左旋支
B.
左前降支
C.
右冠状动脉
D.
右冠状动脉后降支
E.
左冠状动脉主干
【简答题】写出下列反应的化学方程式: (1)2002年12月1日,美国哥伦比亚号航天飞机在空中解体,美国政府宣称:“不能私自收藏其碎片,其原因是沾有剧毒的燃料联氨(N 2 H 4 )”.其实在航天飞机碎片与大气层高速摩擦燃烧时,即使沾有联氨也早就燃烧变成了氮气和水.请写出联氨在空气中燃烧的化学方程式:______. (2)氢氧化钠在空气中能吸收水分并能与二氧化碳反应,故应______保存.已知玻璃的主要成分...
【简答题】Leukocyte refers to a white blood cell and erythroblast refers to an immature red blood cell. Please write down the word which refers to an immature white blood cell.
【单选题】Which word refers to a feeling of liking or wanting someone or something more than someone or something else?
A.
prefer
B.
preference
C.
approve
D.
approval
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