无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項選擇題

You should save your work often as a（）against computer failure.

A.sanction
B.precaution
C.shield
D.shelter

你可能感興趣的試題

單項選擇題

If a man is easily taken in by emotional traps, he will not be able to make（）judgments.

A.sensitive
B.sentimental
C.sensible
D.sensational

單項選擇題

It is a type of desert bush that can （） extremes of temperature.

A.adapt
B.withdraw
C.withstand
D.shade

<sup id="yxoh8"><pre id="yxoh8"><div id="yxoh8"></div></pre></sup>