妊娠8周,下列哪项不符合
A.子宫颈软,呈紫蓝色
B.子宫体增大,于耻骨联合上方可扪及
C.晨起恶心、呕吐
D.妊娠试验阳性
E.乳晕着色
参考答案:B
What are you going to do this afternoon? I'm not sure. I _____ go shopping with my mother.[ ]
A. may
B. can
C. must
D. need
设函数f(x)=loga|x|在(-∞,0)上单调递增,则f(a+1)与f(2)的大小关系是[ ]
A.f(a+1)=f(2)
B.f(a+1)>f(2)
C.f(a+1)<f(2)
D.不能确定