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【多选题】
下列关于市政工程测量的说法错误的有（）A.
市政工程纵横断面图的高程比例尺与里程比例尺一样
B.
公路工程测量中，有横断图的地方，纵断图上可没有相应的里程桩号。
C.
规划道路定线条件可以根据测量情况由测量人员改动
D.
规划道路定线中，钉曲线桩位，要钉出曲线主点
E.
路线勘测设计测量一般分为初测和定测两个阶段
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【单选题】_______ the illegal mobile WAP sites worries many parents. [ ]
A.
The children's surfing
B.
The children surf
C.
The children surfing
D.
The children have surfed
【单选题】— How many ______ are there in your class? — About 63. [ ]
A.
childs
B.
childrens
C.
children
D.
child
【单选题】若 1+cosx 1-cosx - 1-cosx 1+cosx =- 2 tanx ，则角x为第（ ）象限的角．
A.
（1）（2）
B.
（3）（4）
C.
（1）（4）
D.
（2）（3）
【单选题】命题p：?x∈R，cosx＞1的否定是（ ）
A.
￢p：?x∈R，cosx≤1
B.
￢p：?x∈R，cosx≤1
C.
￢p：?x∈R，cosx＜1
D.
￢p：?x∈R，cosx＜1
【简答题】阅读理解。 It was Sports Day at School. There were many races. Lots of parents were watching the children. There was a large crowd of people. Some girls were talking about the races. They were talking abou...
【简答题】函数y= 3cosx+1 cosx+2 的值域是______．
【简答题】She must be very tired. _______so many little childrenis a very hard job. A. To have looked after B. Having lookedafter B. Look after D. Looking after
【单选题】已知命题p：?x∈R，cosx≤1，则（ ）
A.
￢p：?x∈R，cosx≥1
B.
￢p：?x∈R，cosx＜1
C.
￢p：?x∈R，cosx≤1
D.
￢p：?x∈R，cosx＞1
【单选题】We have too many people in our country. Their life will be ___________ if there are ___________ children in a family.
A.
richer; fewer
B.
poorer; fewer
C.
richer; more
D.
richer; less
【简答题】命题“?x∈R，cosx≤1”的否定是（ ） A．?x∈R，cosx≥1 B．?x∈R，cosx＞1 C．?x∈R，cos≥1 D．?x∈R，cosx＞1
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