【多选题】【消耗次数：1】
我们可以通过以下三种方式（）定义简单类型。
①
对已有基本类型或简单类型添加限制条件
②
list类型
③
在已有基本类型基础上扩展属性
④
union类型
参考答案：
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相关题目
【单选题】
教学组织的基本类型有（ ）
①
班级授课组织、分组教学组织、个别化教学
②
个别学习、伙伴学习、合作学习
③
分组教学组织、个别化教学、个别学习
④
班级授课、分组教学、情景模式
随机题目
【单选题】
— I drove to Zhuhai for the air show last week. — Is that ____ you had a few days off?
①
why
②
when
③
what
④
which
【单选题】
John asked me _______ to visit his uncle’s farm with him.
①
how would I like
②
if or not would I like
③
whether I would like
④
wehn I would like
【单选题】
—Thank you for your MP4 player. I’ll ask Mary to take it to you soon.—_____. I’ve bought a new one.
①
No sense
②
No hurry.
③
No way
④
sorry
【单选题】
— I can’t find my mobile phone. I’m sure it’s in this room. — _______. I’ll call you with my phone. When it rings, you can follow the sound.
①
Excuse me.
②
Good luck
③
Don’t worry
④
ok
【单选题】
一Susan, will you please go and empty that drawer? 一 ?
①
What for
②
What is it
③
How is it
④
When is it