孕妇首次进行产前检查的时间是（）
A.妊娠12周
B.妊娠20周
C.医生确诊早孕时
D.妊娠6周
E.母体初感胎动时
参考答案：C
—David,could I use your car?
—Sorry,there is something wrong with it.I will have it________this afternoon.[ ]
A. repair
B. to repair
C. repairing
D. repaired
暖风器疏水泵轴承冷却水来自那里？回水至哪里？
