问题
判断题
机械加工阶段的划分是以某一表面的加工或某一工序的性质来判断。
答案
参考答案:错
机械加工阶段的划分是以某一表面的加工或某一工序的性质来判断。
参考答案:错
32.Communicating via E-mail is by far the most common Internet activity. You can (1) with anyone in the world who has an Internet address or E-mail (2) with a system connection to the Internet. All you need is (3) the Internet and an E-mail program Two of the most widely used E-mail programs are Microsoft’s (4) and Netscape’s Navigator. A typical E-mail message has three basic (5) :header, message, and signature. |
(3)
A.more than
B.than
C.that
D.which