皮皮学，免费搜题
登录
搜题
【简答题】
在尿素合成过程中，由于尿素反应化学平衡的限制，进入合成塔的原料不可能（）转化为尿素。在尿素合成塔排出物料中除含有尿素和水以外，还有未反应的（），它们以（），（）及（）的形态存在于尿素溶液中。这部分物质必须和尿素分离出来，作为（）重新循环使用。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】I________at my watch and was surprised to see that it was nearly midnight. [ ]
A.
glanced
B.
observed
C.
glared
D.
stared
【简答题】Sunday was busy day. I had to get up at 5:00a.m. to attend the class activity. _______ I hurried to catch he bus to the other side of the city to tutor my new student for the whole morning. __________...
【多选题】Warmth at Midnight Canberra winters are extremely cold, and 2014 brought some of our coldest days. One weekday night I walked to the 1 supermarket before it closed at midnight. As I approached, I noti...
A.
dangers
B.
local
C.
happy
D.
reading
E.
freezing
F.
attentively
G.
potential
H.
sitting
I.
poorly
J.
given K. consumed L. circle
【单选题】It was midnight. I _____________ for five straight hours. No wonder I was getting tired.
A.
have been studying
B.
had studied
C.
had been studying
D.
was studying
【简答题】Warmth at Midnight Canberra winters are extremely cold, and 2014 brought some of our coldest days. One weekday night I walked to the 1____ ( ) supermarket before it closed at midnight. As I approache...
【简答题】It was late into the night and there weren’t many stars in the sky. I saw a flame ( 火焰 ) in my neighbour’s __1__. I thought he was having a midnight fast food so I went back to my __2__. Soon, there w...
【简答题】When I ________(arrive) at the hotel, it was midnight .
【简答题】某工业企业为增值税一般纳税企业，材料按计划成本计价核算。甲材料计划单位成本为每公斤10元。企业2005年4月份有关资料如下： (1) “原材料”账户月初借方余额20 000元， “材料成本差异”账户月初贷方余额700元，“物资采购”账户月初借方余额40 000元(上述账户核算的均为甲材料)。 (2) 4月5日，企业上月已付款的购入甲材料4 040公斤，如数收到，已验收入库。 (3) 4月20日，从...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
