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【单选题】
现用质量分数为98%的浓硫酸（密度是1.84g/cm 3 ）配制560g质量分数为14%的稀硫酸时，下列有关叙述不正确的是（ ）A.
需要98%的浓硫酸80g
B.
配制此溶液的步骤是：计算、量取、溶解
C.
需要水的质量是481.6g
D.
配制时用到的主要仪器有量筒、烧杯、玻璃棒
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【简答题】简述旅游产品营销渠道的概念和作用。
【简答题】直接营销渠道的概念?它的优缺点?
【简答题】Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do: once or twice she had peeped into the book her sister was reading, but it had no pictures or co...
【简答题】用所给词的适当形式填空。 I. This book is full of pictures. It's very ______ (suit) for children. 2. The old man collect waste paper and bottles for ______ (recycle) and his house is built out of ______ (recycl...
【单选题】肺源性心脏病患者出现心室颤动.心脏骤停以致突然死亡最常见的原因是
A.
急性广泛心肌梗死
B.
急性严重心肌缺氧
C.
右心功能不全
D.
左心功能不全
E.
合并脑血管意外
【单选题】'Me-Books Publishing Company' is very unusual because______.
A.
it makes the reader the leading character in the story
B.
it makes use of computer in designing the story
C.
it is printed as a hardcover book
D.
the stories are all very interesting and attractive
【简答题】使用内置对象完成页面访问量统计及登录注册信息的显示
【单选题】The reference book is for our English study.
A.
great useful
B.
of great use
C.
of very use
D.
very use
【单选题】读者如何使用我馆订购的“知网”数据库
A.
百度上检索“知网”
B.
在学校IP范围登录图书馆—电子资源—中国知网
C.
任意IP登录“中国知网”
D.
校外登录“中国知网”
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