A seismograph is a (device) designed to measure vibrations of the ground.

题库:综合类 类型:最佳选择题 时间:2017-07-03 03:14:25 免费下载:《词汇语法》Word试卷

A seismograph is a (device) designed to measure vibrations of the ground.
A.element
B.telescope
C.vehicle
D.instrument

本题关键词:僵a,ECF-A,EP21-A,EP6-A,EP18-A,EP7-A,Lp(a),Lp（a）,A-aDO2,抗A;