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【单选题】
一下哪个TCP熟知端口号是错误的?( )A.
TELNET:23
B.
SMTP:25
C.
HTTP:80
D.
FTP:24
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反馈参考答案：
举一反三
【多选题】关于山莨菪碱的叙述,错误的是
A.
对胃肠平滑肌和血管平滑肌的解痉作用强
B.
对眼的作用弱
C.
抑制唾液分泌作用强
D.
可用于晕动病和帕金森病
E.
青光眼患者禁用
【单选题】Today we have _________. [ ]
A.
two new student
B.
new two students
C.
new two student
D.
two new students
【单选题】B Maybe you are an average(一般的) student．You probably think you will never be a top student．However ，anyone can become a better student if he or she does lus or her best．Here are some tips to help you．...
A.
Three．
B.
Four．
C.
Five．
D.
Six．
【单选题】在当前目录下有数据表文件student．dbf，执行如下SQL语句后 SELECT * FORM. student INTO DBF student ORDER BY学号/D
A.
生成一个按“学号”升序的表文件，将原来的student，dbf文件覆盖
B.
生成一个按“学号”降序的表文件，将原来的student．dbf文件覆盖
C.
不会生成新的排序文件，保持原数据表内容不变
D.
系统提示出错信息
【简答题】A．Only one student of the department. B．All the students of the department. C．Some students in the department. D．None of the above.
【单选题】______the homework seriously.
A.
No every student do
B.
No every student does
C.
Not every student do
D.
Not every student does
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