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【单选题】
一个A类网络地址2.0.0.0,掩码为255.248.0.0的网络,它的一个有效子网网络地址是( )
A.
2.5.0.0
B.
2.8.0.0
C.
2.3.0.0
D.
2.4.0.0
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参考答案：
举一反三
【单选题】If a driver wants lo leave his car and go to the shops, ______.
A.
he can leave his car anywhere
B.
he can leave his car at the gate of any shop
C.
he must look for the sign with the letter P on it
D.
he can leave his car at tile side of the street
查看完整题目与答案
【单选题】Many people stood outside the manager’s office, nervously waiting _________    for the job.
A.
to choose
B.
being chosen
C.
choosing
D.
to be chosen
查看完整题目与答案
【单选题】Joan stood outside a shopping mall for a long time, as if ________ somebody. [     ]
A.
to wait for
B.
waiting for
C.
waited for
D.
having waited for
查看完整题目与答案
【单选题】He stood up, _____ the large door and looked outside. There on the ground lay a white dog. [     ]
A.
opens
B.
opened
C.
opening
D.
having opened
查看完整题目与答案
【单选题】一级复床除盐系统中,水流过阳床时的反离子是:
A.
阴离子
B.
氢离子
C.
氢氧根离子
D.
阳离子
查看完整题目与答案
【判断题】国家建设部会同有关部门,共同制订了中华人民共和国国家标准《岩土工程勘察规范》GB50021-94,作为强制性国家标准于1995年3月1日正式颁布施行
A.
正确
B.
错误
查看完整题目与答案
【多选题】厚朴干皮的断面特征为
A.
外层灰棕色,颗粒性
B.
内层紫褐色或棕色,纤维性
C.
油润
D.
有时可见发亮的结晶
E.
中间有一条黄棕色线纹
查看完整题目与答案
【简答题】企业在购入材料的核算中,需在月末暂估入账并于下月初红字冲回的是()。 A. 月末购货发票账单已到,货款已付但未入库的材料 B. 月末购货发票账单已到,货款未付但已入库的材料 C. 月末购货发票账单已到,货款已付且已入库的材料 D. 月末购货发票账单未到,但已入库的材料
查看完整题目与答案
【单选题】The policeman asked Mr. Smith .
A.
what did his car look like
B.
how was his car
C.
how his car looks
D.
what his car looked like
查看完整题目与答案
【单选题】小企业在材料收人的核算中,需在月末暂估人账并于下月初红字冲回的是( )。
A.
月末购货发票账单未到，但已人库的材料
B.
月末购货发票账单已到，货款未付但已人库的材料
C.
月末购货发票账单已到，货款已付并已入库的材料
D.
月末购货发票账单已到，货款已付但未人库的材料
查看完整题目与答案
相关题目：
【单选题】If a driver wants lo leave his car and go to the shops, ______.
A.
he can leave his car anywhere
B.
he can leave his car at the gate of any shop
C.
he must look for the sign with the letter P on it
D.
he can leave his car at tile side of the street
查看完整题目与答案
【单选题】Many people stood outside the manager’s office, nervously waiting _________    for the job.
A.
to choose
B.
being chosen
C.
choosing
D.
to be chosen
查看完整题目与答案
【单选题】Joan stood outside a shopping mall for a long time, as if ________ somebody. [     ]
A.
to wait for
B.
waiting for
C.
waited for
D.
having waited for
查看完整题目与答案
【单选题】He stood up, _____ the large door and looked outside. There on the ground lay a white dog. [     ]
A.
opens
B.
opened
C.
opening
D.
having opened
查看完整题目与答案
【单选题】一级复床除盐系统中,水流过阳床时的反离子是:
A.
阴离子
B.
氢离子
C.
氢氧根离子
D.
阳离子
查看完整题目与答案
【判断题】国家建设部会同有关部门,共同制订了中华人民共和国国家标准《岩土工程勘察规范》GB50021-94,作为强制性国家标准于1995年3月1日正式颁布施行
A.
正确
B.
错误
查看完整题目与答案
【多选题】厚朴干皮的断面特征为
A.
外层灰棕色,颗粒性
B.
内层紫褐色或棕色,纤维性
C.
油润
D.
有时可见发亮的结晶
E.
中间有一条黄棕色线纹
查看完整题目与答案
【简答题】企业在购入材料的核算中,需在月末暂估入账并于下月初红字冲回的是()。 A. 月末购货发票账单已到,货款已付但未入库的材料 B. 月末购货发票账单已到,货款未付但已入库的材料 C. 月末购货发票账单已到,货款已付且已入库的材料 D. 月末购货发票账单未到,但已入库的材料
查看完整题目与答案
【单选题】The policeman asked Mr. Smith .
A.
what did his car look like
B.
how was his car
C.
how his car looks
D.
what his car looked like
查看完整题目与答案
【单选题】小企业在材料收人的核算中,需在月末暂估人账并于下月初红字冲回的是( )。
A.
月末购货发票账单未到，但已人库的材料
B.
月末购货发票账单已到，货款未付但已人库的材料
C.
月末购货发票账单已到，货款已付并已入库的材料
D.
月末购货发票账单已到，货款已付但未人库的材料
查看完整题目与答案
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