判断先兆流产的预后好坏的检查是
A.激素检查
B.尿HCG
C.血常规
D.B超
E.出凝血时间
参考答案:A
I don't know how to deal with my family problem. Can you give me some ?
A. advice B. messages C. information
下列函数返回类型为字符型的是( )。
A.STR(123,3)
B.VAL("123")
C.CTOD("2010/09/01")
D.CTOT("2010/09/01")