滋养细胞肿瘤的随访指标中,除血尿hCG外,下列哪一项最有价值()
A.肺X线片
B.妇科检查
C.子宫双附件B超
D.肝脏B超
E.基础体温
参考答案:A
Many Children ________ the Internet , and _____had a bad effect on their studies.
A.are addicted to; it
B.get engaged in; which
C.are related to; what
D.are addicted to; which
离子色谱仪器主要由哪几部分组成?