临床预防方法不包括（）。
A.健康教育
B.筛检
C.临床治疗
D.免疫预防
E.化学预防
参考答案：C
I am wondering _________. [ ]
A. why did he come to school late
B. why he came to school late
C. that he came to school late
D. why was he late for school
3G到2G切换判决算法中，启动延迟触发定时器Trigger-Timer的条件是（）
A.Mother_RAT+CIO>=Tother_RAT-H/2
B.Mother_RAT-CIO>=Tother_RAT-H/2
C.Mother_RAT+CIO>=Tother_RAT+H/2
D.Mother_RAT-CIO>=Tother_RAT+H/2
