职场写作：如何写传真Fill in the blanks according to the information in the bracket.Dear Miss Wang Li,About the preparation for the meetingAs next Wednesday’s meeting is very important to us, we want to know 1)_________________________(会议准备情况如何). Please inform us of 2_______________________ (最新进展) as soon as possible.Yours Sincerely,Rong Fei
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What can smartphone do for us?
A. To surf the internet
B. To update personal micro blog
C. To upload the latest pictures
D. All of the above
Which smart appliances can take us everywhere we want to go?
A. Smart phone
B. Smart furniture
C. Smart cars
D. AI
4、ArrayList和Vector的区别说法正确的是( )。
ArrayList是线程安全的，Vector是线程不安全
B. ArrayList是线程不安全的，Vector是线程安全的
C. ArrayList底层是数组结构，Vector底层是链表结构
D. ArrayList底层是链表结构，Vector底层是数组结构
6、ArrayList类的底层数据结构是( )。
A. 数组结构
B. 链表结构
C. 哈希表结构
D. 红黑树结构
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