【判断题】Instead of simply repeating what has already been said in the Results section, you should try to present the principles, relationships and generalization of them in the Discussion section.
【简答题】((9分) (1)在配合物离子(FeSCN) 2 + 中,提供空轨道接受孤对电子的微粒是 。 (2)根据VSEPR模型,H 3 O + 的分子立体结构为 ,BCl 3 的构型为 。 (3)Cu 2 + 能与NH 3 、H 2 O、Cl - 等形成配位数为4的配合物。 ①[Cu(NH 3 ) 4 ] 2+ 中存在的化学键类型有 (填序号)。 A.配位键 B.离子键 C.极性共价键 D.非极性共价键 ...
【判断题】旅游团在景点游览时,全程导游员应走在旅游团的后面,招呼滞后的旅游者,不时清点人数,以防走失。()
【简答题】12 Part Ⅱ Vocabulary and Structure Section A. 34.Our purchase decisions are generally made ______ the basis of price, delivery dates, and after-sales service.A. 1111MicrosoftInternetExp...
【多选题】Which of the following are good study habits to develop?
A.
Interleave your learning by alternating your practice with different types of problems--don't waste study time by simply repeating the same technique over and over again.
B.
Keep practicing the easy material instead of focusing on the harder material because it's more comfortable to do this, and it will help you to enjoy your learning more.
C.
Have the TV on in the background for company and a readily available distraction while you are learning.
D.
Space out study sessions with smaller bits of information to be mastered in each session.
【简答题】Section B 31. It’s about two hours’ (fly) _______ from Xi’an to Beijing. 32. When I last saw Seama, he (hurry) __________ to his next class and did not have time to talk. 33. (hold) ____________ the n...
【单选题】Instead of repeating “It was very cold and very dark”. we can say like this, “It was _ ___ cold and ____ dark”.