____________: improve or develop(esp. The mind, a feeling, ect.) by careful attention, training, or study

The oil has many purposes: there are lubricating, ( ), cleaning ect. A: cooling B: seal C: heat D: warm

中国大学MOOC: The idea of a free trial period is often used to sell computer games, memebership of a club,ect.

•Promotional activities: adopt____11______by mail or phone, a visit by ___12___,coupons,discounts, in-store displays,___13_____,samples andcontest,ect.

【单选题】电休克疗法(ECT)与使用抗抑郁药物治疗之间的主要区别在于 A. 抗抑郁药物比ECT更快地解除抑郁症。 B. 抗抑郁药物更容易损害记忆力。 C. ECT具有较少的危险副作用。 D. ECT比抗抑郁药物更快地缓解抑郁症。 E. 抗抑郁药物可能适用于对ECT无反应的抑郁症患者

以下（）文件保存用户口令加密信息。 A: /etc/gshadow B: /etc/users C: /ect/shadow D: /ect/fstab

下面哪个是重启Samba服务的命令() A: /ect/init.d/smbdstart B: servicesmbdrestart C: servicesmbdstart D: /ect/smbdrestart

Counter-offer means that the offeree doesn't accept the offer wholly and put forward some additions, modifications, limitations, ect. as to the basic terms and conditions contained in the offer.

中国大学MOOC: In order to maintain coherence of the writing, the author states his stand very clearly with a bunch of _____ words, like “chasing the tail”, “find excuses”, “desperately” and ect.

【判断题】A narrative may be simply about a story that illustrates a point about an emotion you felt, like jealousy, confusion, sadness, terror, ect. A. 对 B. 错