听音辩词1.[音频]2.[音频]3.[音频]
A. subsequent personnel sergeant
B. sergeant subsequent personnel
C. sergeantpersonnelsubsequent
D. subsequentsergeantpersonnel
使...免;保护...不受伤害
A. reserve sth. for sb./sth.
B. relate to
C. ring out
D. shield ...from...
被卷入;陷入
A. with good grace
B. get caught up in sth.
C. make sense of
D. count on
高程指空间参考的高于或低于某基准面的垂直位置,主要用来提供地形信息。
A. 对
B. 错