丁卡因不宜用于（）
A.表面麻醉
B.浸润麻醉
C.传导麻醉
D.硬膜外麻醉
E.蛛网膜下腔麻醉
参考答案：B
Many new workers ________ and after six months they will be sent to build a new railway.[ ]
A. are being trained
B. are training
C. will train
D. will be trained
成年女性导尿时，导尿管插入（ ）。
A．2～3cm
B．4～6cm
C．6～8cm
D．7～8cm
