替换的恒牙根发育超过多少时应拔除滞留的乳牙 A．1/3 B．3/5 _爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

替换的恒牙根发育超过多少时应拔除滞留的乳牙

A．1/3
B．3/5
C．1/5
D．1/4
E．1/2

答案

参考答案：E

选择题

— I _____ James this evening and ask her to come to my party.
— Don't phone her between 6 and 7 o'clock. She _____ a bath.

A. am about to call; will behaving
B. am going to call; is having
C. am about to call; is having
D. am going to call; will be having

单项选择题

“运输工具名称”栏应填( )。

A．M/V“NORTHERN ENTERPRISE”/302N

B．“NORTHERN ENTERPRISE”/302N

C．NORTHERN ENTERPRISE/302N

D．HANSA STAVANGER/HV300W