位置表浅或有溃疡的肿瘤，在切取活组织检查时，一般不宜采用
A．表面麻醉
B．阻滞麻醉
C．基础麻醉
D．浸润麻醉
E．针刺麻醉
参考答案：D
He took down the old map on the wall and ______ a new one instead.
A．put down
B．put on
C．put off
D．put up
There are _____ months in a year._____ month is December.
A．twelve;Twelfth
B．twelfth;The twelfth
C．twelve;The twelfth
D．twelfth;Twelfth
