诊断X线主要利用的是
A．靶面B．电子源C．轨道电子跃迁D．特征X线E．轫致辐射
参考答案：E
喝酒不醉是否可以开车？（）
A、不能
B、喝少量酒是可以的
The writer ___ his writing so that he forgot to have his lunch.
A．absorbed
B．was absorbed into
C．absorbed into
D．was absorbed in
