悬空式桥体龈面至牙槽嵴黏膜的距离 至少为
A.0.5mmB.1.0mmC.1.5mmD.2.0mmE.3.0mm
参考答案:E
The teacher tells his students to _______the dictionary for the new word.
A.look up
B.consult
C.consult about
D.look over
开户单位的库存现金限额由开户银行根据开户单位的( )的日常零星开支所需的现金核定。
A.3至5天
B.3天
C.5天
D.5至7天