【单选题】在速卖通平台中,卖家不能发布以下哪种产品?( )
【单选题】The apprenticeship can bring Gemma Magson many benefits NOT because it
A.
makes her free up some time to get on with other things.
B.
brings many creative ideas to her for innovating her shops.
C.
helps her to offer someone else the opportunity to learn a trade.
D.
saves her a lot of energies to expand the business.
【判断题】The energies of many-electron atoms orbitals increase in the order 1s < 2s < 2p < 3s < 3p < 3d < 4s.......
【单选题】对广东菜系叙述正确的是()。
A.
广东菜是由广州菜、潮州菜、东江菜组成,而以广州菜为代表
B.
广东菜的代表名菜有:油爆双脆、烤乳猪、开水白菜等
C.
广东菜以鲜咸为主,五味兼蓄,风格淳朴,注重实惠著称
【简答题】从《地主和长工》的故事中正确理解生产要素需求的特点。 从前,有一个地主非常贪婪,对待雇工非常刻薄。张三去给地主打长工,地主说:“我们有言在先。如果你辞职不干,我不但不给你工钱,还要割掉你的鼻子。如果我辞退你,你就割掉我的鼻子。”张三答应了。 一天,地主对张三说:“今天,你把我的100亩地从头到尾耕一遍。”张三拿起锄头,从地的这一端到另一端锄了一条线,就坐下休息了。地主见了大怒,说:“这就是你耕的地...
【简答题】每天晚上睡觉前,小宇要做下面几件事情: (1)整理书包,准备第二天要带的学习用具:5分钟; (2)背诵一下当天学习的英语单词:10分钟; (3)整理床铺,准备睡觉:2分钟; (4)洗脸、刷牙:3分钟,温洗脚水:5分钟,洗脚:5分钟,收听新闻:10分钟。 小宇最少要用多长时间才能把这些事做完?
【多选题】Why is coenzyme A important to many metabolic reactions?
A.
Coenzyme A has a reactive thiol (—SH) group that is critical to the role of CoA as an acyl carrier in many metabolic reactions.
B.
Acyl groups are covalently linked to the thiol group, forming thioesters.
C.
Because of their relatively high standard free energies of hydrolysis, thioesters have a high acyl group transfer potential—that is, donation of their acyl groups to a variety of acceptor molecules is a favorable reaction.
D.
The acyl group attached to coenzyme A may thus be thought of as “activated” for group transfer.
【单选题】睡觉前,聪聪要做下面几件事:整理床铺,准备睡觉:2分钟;洗脸刷牙:3分钟;温洗脚水:5分钟;洗脚:5分钟;看英语新闻:5分钟。聪聪要把这些事做完至少用 [ ]