下载APP
【单选题】
What is the reason for setting an official holiday for stepparents?
A.
Because they love their role as stepparents.
B.
Because they are often treated as heroes in the family.
C.
Because they deserve respect and honor as family members.
D.
Because they are often seen as the most loving family members。
举报
如何制作自己的在线小题库
参考答案:
参考解析:
刷刷题刷刷变学霸
举一反三
【单选题】请根据下面选项回答{TSE}题:A.Where are you going today B.That’s not our bus C.I'll catch up on my reading to kill timeD.There isn’t a cloud in the sky E.Did you catch the news today F.How long h...
查看完整题目与答案
【单选题】请填写最佳答案( )
查看完整题目与答案
【单选题】下列函数中,在x=0处不可导的是( )
A.
B.
C.
y=sinx
D.
y=x
2
查看完整题目与答案
【单选题】函数ƒ(x)=ln(x2+2x+2)的单调递减区间是( )
A.
(-∞,-1)
B.
(-1,0)
C.
(0,1)
D.
(1,+∞)
查看完整题目与答案
【单选题】( )
A.
in2
B.
2ln2
C.
D.
查看完整题目与答案
【单选题】二元函数z=x2+y2-3x-2y的驻点坐标是( )
A.
B.
C.
D.
查看完整题目与答案
【单选题】曲线y=x3+2x在点(1,3)处的法线方程是( )
A.
5x+y-8=0
B.
5x-y-2=0
C.
x+5y-16=0
D.
x-5y+14=0
查看完整题目与答案
【单选题】( )
A.
ln| 2-x|+C
B.
-ln| 2-x|+C
C.
D.
查看完整题目与答案
【单选题】设区域D={(x,y)(0≤y≤x2,0≤x≤1),则D绕X轴旋转一周所得旋转体的体积为( )
A.
B.
C.
D.
π
查看完整题目与答案
【单选题】设A,B为两个随机事件,且相互独立,P(A)=0.6,P(B)=0.4,则P(A-B)=( )
A.
0.24
B.
0.36
C.
0.4
D.
0.6
查看完整题目与答案