【单选题】【消耗次数：1】
14.We should plant trees on _______ side of the road.
①
each
②
some
③
every
④
many
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相关题目
【单选题】
Although they plant trees in this area every year, the tops of some hills are still ______.
①
blank
②
hollow
③
vacant
④
bare
【单选题】
We should be pleased to send you some samples of our new printers on approval, _______ our own expenses.
①
at
②
on
③
for
④
in
【单选题】
9.We should really take some effective ______ to prevent such terrible things from happening again.
①
measures
②
steps
③
means
④
ways
【单选题】
It was getting dark. I found a car________in a pool by the side of the road.
①
to be stuck
②
stuck
③
sticking
④
stick
【单选题】
11.It was getting dark. I found a car____in a pool by the side of the road.
①
to be stuck
②
stuck
③
sticking
④
stick
【单选题】
When we speak to people, we should be ______.
①
as polite as possible
②
as polite as possibly
③
as politely as possible
④
as politely as possibly
【单选题】
— Its very windy and dusty in Beijing .
—Well, more trees______ every year to stop the wind and sand.
①
should plant
②
should planted
③
can planted
④
must be planted
【单选题】
The tall building of the martyred city flashed by as we lurched from side to side ______ the driver’s sharp twists of the wheel.
①
in response to
②
as response to
③
in response of
④
as response of
随机题目
【单选题】
下列关于糖的说法正确的是（ ）。
①
糖类中除含有C、H、O三种元素外，还可能含有其他元素
②
葡萄糖是多羟基醛
③
能发生银镜反应的物质一定属于醛类
④
糖类可划分为单糖、多糖两类
【单选题】
“不粘锅”饮具是在金属锅的内壁上涂一薄层聚四氟乙烯制成，下列各项对聚四氟乙烯的叙述中正确的是( )。
①
聚四氟乙烯的化学性质很稳定，正常使用时不会发生化学变化
②
聚四氟乙烯的分子内支链很多，且彼此缠绕，不会污染食物
③
聚四氟乙烯在高温时容易燃烧
④
在聚四氟乙烯的单体中不含有碳碳双键
【单选题】
下列哪个选项属于碳链异构（ ）。
①
CH3CH2CH3和CH3CH(CH3)
②
CH2＝C(CH3)2和CH3CH＝CHCH3
③
CH3CH2CH2COOH 和CH3COOCH2CH
④
CH3CH2OH和CH3OCH3