【单选题】It makes me ______ when people don' t listen, and then ask silly questions.
【单选题】一 场大雪过后,人们会感到外面万籁俱寂。究其原因,你认为正确的是 ( )
【单选题】The Dutch can hold the Eleven Cities Tour when ______.
A.
the Gulf Stream influences the winter weather
C.
they are the host for the Olympics
D.
half a million people take part
【单选题】When I spoke English,people there always laughed _________me.
【简答题】(12分)接触法制硫酸采用V 2 O 5 作催化剂,使用过的催化剂中含V 2 O 5 、VOSO 4 和SiO 2 ,其中VOSO 4 能溶于水,从使用过的V 2 O 5 催化剂中回收V 2 O 5 的主要步骤是:向使用过的催化剂中加硫酸和Na 2 SO 3 浸取还原,过滤得VOSO 4 溶液;向滤液中加入KClO 3 氧化,再加入氨水生成沉淀;将沉淀焙烧处理后得V 2 O 5 。 (1) V 2...
【单选题】一场大雪过后,人们会感到外面万籁俱寂,究其原因,你认为正确的是( )。
【判断题】When Dutch people meet; they kiss each other on one cheek and then the other.
【单选题】As a writer, I like ________ when people send me pictures of their lovely children reading my books. [ ]
【单选题】食管癌术后胃肠减压的护理以下不正确的是
D.
若引出大量鲜血,伴血容量不足的表现,应考虑吻合口出血