【多选题】【消耗次数：1】
变体设计包括（ ）、（ ）以及（ ）。
①
体型的变体
②
组合的变体
③
颜色的变体
④
元素的变体
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相关题目
【单选题】
三刚片组成几何不变体系的规则是（ ）
①
三链杆相联，不平行也不相交于一点
②
三铰两两相联，三铰不在一直线上
③
三铰三链杆相联，杆不通过铰
④
一铰一链杆相联，杆不过铰
随机题目
【单选题】
The population of the world ______ still _____ now.
①
will; grow
②
have; grown
③
is ; growing
④
is ; grown
【单选题】
It takes a lot of ____ to put on a school play such as
King Lear.
①
organization
②
arrangement
③
management
④
preparation
【单选题】
You are ____ to have had the help of such a man.
①
thoughtful
②
considerate
③
fortunate
④
moderate
【单选题】
You’ d rather have a cup of tea than have a cup of coffee,
_____?
①
wouldn’ t you
②
hadn’ t you
③
would you
④
had you
【单选题】
Without his timely help, we _____ all these in such a short period of time.
①
dont accomplish
②
have not accomplished
③
should not accomplish
④
would not have accomplished
【单选题】
I am sorry I have no time at present to ____ more detail or give you an account of other cities of interest.
①
bring into
②
take into
③
come into
④
go into
【单选题】
He cannot ____ a car, for he does not earn much money.
①
obtain
②
afford
③
donate
④
consume