更多"[单选题]It used to be hard to find a t"的相关试题:
[单选题]Starboard ten.
A. 左舵10 。
B. 右满舵 。
C. 右舵10 。
D. 左满舵 。
[判断题]delete table 与truncate table 命令都可以清空表内数据，并降低高水位。
A.正确
B.错误
[单选题]——Hard-a-port!
——Reply:Hard-a-port!
——Report:______!
A. Hard-a-port !
B. Wheel hard-a-port !
C. Engine hard-a-port !
D. Wheel half-a- port!
[简答题] I got married ten years ago.
[单选题]假如有两个表的连接是这样的：table_1 INNER JOIN table_2 其中table_1和table_2是两个具有公共属性的表，这种连接会生成（ ）结果集。
A.包括table_1中的所有行，不包括table_2的不匹配行
B.包括table_2中的所有行，不包括table_1的不匹配行
C.包括和两个表的所有行
D.只包括table_1和table_2满足条件的行
[判断题]hard seat 软座 ( )
A.正确
B.错误
[判断题]硬座 hard sleeper ( )
A.正确
B.错误
[单选题]I live near my school. It's only about ten ____ walk.
A.minutes'
B.minute
C.minute's
D.minutes
[单选题]- It's nearly ten o'clock. It's time for you to go to bed, Kate!- OK. _________, Dad
A.See you later
B.Good-bye
C.Good evening
D.Good night
[单选题] —These problems are too hard to . Will you give me some advice?—There are many ways, but the most important is to have a careful plan.( )
A. work out
B. look out
C. hand out
D. put out
[单选题]下面哪个改变可以通过alter table实现
A.增加一个触发.
B.增加一个索引.
C.增加一调记录
D.定义一个候选关键字
[简答题]She is used to living in the countryside
[单选题]Because computers are commonly used now, less electronic files are used.（）
A.是
B.否
[单选题]The paperless management is widely used now, but some important files are still kept as hard copies.（）
A.是
B.否
[单选题] 以下对于速率traffic table的配置中正确的是
A.CIR不能小于PIR
B.CIR配置好后，PIR不能修改
C.PIR默认与CIR相同
D.PIR默认是CIR的2倍
[单选题] We worked hard and completed the task ________.
A.in the time
B. on the time
C. ahead of time
D. before time
