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【单选题】
数据库管理系统(DBMS)是数据库系统中用来()的软件系统。
A.
建立数据库
B.
描述数据库
C.
保护数据库
D.
管理数据库
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【简答题】Many people catch a cold in the spring time and / or fall.  It makes us wonder .if scientists can send a man to the moon, why they can't find a cure for the common cold. The answer is easy. There are ...
【单选题】某建设项目拟建以一座锅炉房,根据《环境影响评价技术导则 — 大气环境》,该项目大气环境影响预测中污染源计算清单内容不包括 ______ 。
A.
烟囱高度
B.
烟气黑度
C.
SO2 排放速率
D.
颗粒物排放速率
【单选题】听力原文: Many people catch a cold in the spring time or fall. It makes us wonder: if scientists can send a man to the moon, [33] why can't they find a cure for the common cold? The answer is easy. There'...
A.
They haven't devoted as much energy to medicine as to space travel.
B.
There are too many kinds of cold viruses for them to identify.
C.
It is not economical to find a cure for each type of cold.
D.
They believe people can recover without treatment.
【简答题】It is easy for many people to catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can’t they find a cure for the common cold? The answer is easy. T...
【单选题】听力原文: Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There're actu...
A.
There are too many kinds of cold viruses for them to identify.
B.
There is no cure.
C.
They are too busy.
D.
The virus is too small.
【单选题】听力原文: Many people catch a cold in the springtime or fall. It makes us wonder... if scientists can send a man to the moon, why can't they find a cure for the common cold. The answer is easy. There see ...
A.
It has to suffer the misery passively.
B.
It will produce more cells.
C.
It will rebuild its systems.
D.
It will work hard to kill the cold.
【单选题】青春期功血的处理原则不包括下列哪项:
A.
止血
B.
调经
C.
减经量
D.
促排卵
【简答题】Many people catch a cold in the springtime or fall. It makes us wonder… if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There are actually...
【多选题】国际集装箱船舶的结构特点有
A.
统舱口船:船舱的尺度与舱口的尺度相同,且尽可能大
B.
舱内有中间甲板
C.
舱内采用分格结构,用箱格导轨把船舱分格成许多箱格
D.
双层舱壁,双层舱底
【多选题】集装箱船舶的特点有(   )
A.
货舱内部为格栅结构
B.
单甲板、双底双壳
C.
大舱口
D.
对稳性要求高
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