【单选题】Mrs. Bennet forces Elizabeth to marry Mr. Collins mainly because ___________.
B.
Collins is a respected gentleman
C.
their marriage can save the family
D.
Mr. Bennet supports the decision
【单选题】According to Brent Collins, a result of competition in the future will be
A.
fewer manufacturers of sportswear.
C.
inexpensive sportswear.
【判断题】某次列车运行在武昌一汉口间,因行人抢道,列车紧急制动,车窗脱落,由于旅客探身在外,致使旅客头部砸伤,该事故属于其他责任事故。
【单选题】元代特别著名的剧作家及作品有马致远的( )
【简答题】He was looking admiringly at the photograph published by Collins in ________ with the Imperial Museum. A) collection B) connection C) collaboration D) combination
【单选题】Susan Collins accepted the agreement with ______.
【简答题】高铁酸钾(K 2 FeO 4 )具有极高的氧化性,对环境无不良影响,被人们称为“绿色化学”试剂.某校化学兴趣小组对高铁酸钾进行了如下探究. I、高铁酸钾制备: ①在一定温度下,将氯气通入KOH溶液中制得次氯酸钾溶液;②在剧烈搅拌条件下,将Fe(NO 3 ) 3 分批加入次氯酸钾溶液中,控制反应温度,以免次氯酸钾分解;③加 KOH至饱和,使K 2 FeO 4 充分析出,再经纯化得产品. (1)温度过...
【单选题】高铁酸钾 (K 2 FeO 4 )是一种高效绿色水处理剂,其工业制备的反应原理为:2Fe(OH) 3 +3KClO+4KOH=2K 2 FeO 4 +3KCl+5H 2 O,下列说法正确的是( )
D.
制备高铁酸钾时1molFe (OH) 3 得到3 mol电子