问答题
您的浏览器不支持 audio 元素。
【参考答案】
[听力原文]
Laser
A laser is used to ......
(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)
点击查看答案
<上一题
目录
下一题>
热门
试题
单项选择题
She has bought herself ______ dress.
A.a cotton purple expensive
B.an expensive purple cotton
C.a purple expensive cotton
D.a cotton expensive purple
点击查看答案&解析
单项选择题
Doing your homework is a sure way to improve your test scores, and this is especially true ______ it comes to classroom tests.
A.when
B.since
C.before
D.after
点击查看答案&解析
相关试题
A.involvedB.acknowledgedC.chargedD.c...
A.FlowersB.JewelriesC.CharmsD.Pearls
A.teatsB.curesC.diseasesD.functions
A.lowB.highC.thinD.slight
A.comparativelyB.veryC.recentlyD.con...