【单选题】Decide which of the following best state the author's purpose of writing
A.
To tell readers that growing older is more pleasant than being young
B.
To prove that struggling to be young is part of American values
C.
To point out some advantages of growing older that have been overlooked.
【判断题】微量元素和重金属在天然水中主要以离子形式存在
【单选题】The sentence 'I am sorry' belongs to
【判断题】液力偶合器主要由泵轮和涡流组成,泵轮是主动轮
【单选题】下列选项关于我国国体和政体的说法不正确的是?
A.
国体即国家性质,是国家的阶级本质,是指社会各阶级在国家生活中的地位和作用。
B.
政体即政权组织形式,我国的政权组织形式是人民代表大会制度。
【判断题】Agreement Maxim applies to directives and commissives.
【单选题】某学习小组拟利用如下装置制备氮化钙(化学式:Ca 3 N 2 ,极易与H 2 O反应) 下列说法正确的是
A.
打开活塞K通入N 2 ,试管A内有气泡产生,说明装置气密性良好
B.
U形管中盛放的干燥剂既可以用碱石灰,也可以用浓硫酸
C.
反应结束后,先熄灭酒精灯,待反应管冷却后再关闭活塞K
D.
将产物Ca 3 N 2 放入盐酸中,只能得到一种盐
【单选题】After graduation, I became __________. 查看材料
A.
those unexpected,unknown and inaccessible places.
B.
a travel writer for a famous magazine tells us a little about her life and profession
D.
a journalist on a local paper
E.
been to London the remotest place for me at that time
F.
tells us some interesting tourist resorts all over the world
【判断题】Agreement Maxim applies to directives and commissives.
【简答题】直接访问法按具体访问方式的不同分为 、 、 、街头访问调查等。