—I hear Tom ______ playing games recently.

—______ no wonder he is easy to feel sleepy in class.

A．is addicted to；There is

B．addicts；There is

C．addicts；It is

D．is addicted to；It is

某妇，29岁，G3P0，妊娠8周，首次来院作产前检查，患者担心新生儿有先天畸形，做羊膜穿刺术的时间是

A．妊娠8～9周
B．妊娠10～12周
C．妊娠13～15周
D．妊娠16～20周
E．妊娠20～24周