皮皮学,免费搜题
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【多选题】
能被碱催化水解的苷键是
A.
醇苷键
B.
酚 苷键
C.
酯苷键
D.
氮苷键
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【单选题】The author tells us that to communicate effectively, we must understand ______.
A.
our audience and the situation we are in
B.
the target language and facial expressions
C.
both sign languages and verbal languages
D.
the most direct way to deliver a message
【单选题】We can consider our children under stress when they ______.
A.
are unable to communicate their feelings accurately
B.
have trouble communicating their responses to events
C.
often feel abdominal pain without a known reason
D.
have a poor and overcrowded family
【单选题】In our society, we must communicate with people. A great deal of communicating is performed on a person-to- person【C1】______ by the simple means of speech. If we travel in buses, we are likely to have...
A.
basis
B.
base
C.
foundation
D.
ground
【单选题】In our society, we must communicate with other people. A great deal of communicating is performed on a person-to person【C1】______ by the simple means of speech. If we travel in buses, stand in footbal...
A.
basis
B.
base
C.
foundation
D.
ground
【单选题】In our society, we must communicate with other people. A great deal of communication is performed on a person-to-person basis by the simple means of speech. If we travel in buses or stand in football ...
A.
primary
B.
secondary
C.
auxiliary
D.
optional
【单选题】国家标准规定,普通硅酸盐水泥的终凝时间为( )。
A.
不迟于30分钟
B.
不迟于45分钟
C.
不迟于390分钟
D.
不迟于600分钟
【单选题】In our society, we must communicate with other people. A great deal of communicating is performed on a person-to-person【C1】______ by the simple means of speech. If we travel in buses, stand in footbal...
A.
basis
B.
base
C.
foundation
D.
ground
【单选题】国家标准规定,普通硅酸盐水泥的终凝时间( )
A.
不早于 l0h
B.
不迟于 l0h
C.
不早于 6. 5h
D.
不迟于 6.5h
【单选题】国家标准规定:普通硅酸盐水泥的终凝时间控制()
A.
5h
B.
6h
C.
8h
D.
10h、
【单选题】国家标准规定,普通硅酸盐水泥的终凝时间( )
A.
不早于 10小时
B.
不迟于 10小时
C.
不早于 6.5小时
D.
不迟于 6.5小时
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