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【判断题】
数据库是以一定方式储存在一起、能与多个用户共享、与应用程序彼此独立的数据集合,可视为电子化的文件柜A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】鸡血藤区别于大血藤的主要性状特征是()
A.
有髓
B.
皮部呈红棕色，有6处向内嵌入木质部
C.
木质部与韧皮部相间排列3～8层，呈偏心性半圆环状
D.
具多层同心性环纹
【单选题】Why can Jason hide his feelings of happiness and anger?
A.
He is trained to be a gentleman.
B.
He wants to keep his own secret.
C.
He does not get on well with his friends.
【单选题】鸡血藤药材区别于大血藤的主要性状特征是
A.
有髓
B.
皮部呈红棕色，有6～8处向内嵌入木质部
C.
木质部与韧皮部相间排列3～8层，呈偏心性半圆状环
D.
具多层同心性环纹
E.
具有云锦状花纹
【单选题】Which sentence from the section "Hide-And-Seek Was Fun For The Rats" explains why scientists knew that rats liked playing hide-and-seek?
A.
They did "joy jumps."
B.
The scientists think that hide-and-seek might be a very old game.
C.
Games like hide-and-seek can help small animals.
D.
They can learn to hide from enemies.
【简答题】DB是计算机 的简称。
【单选题】鸡血藤区别于大血藤药材的主要特征是
A.
有髓
B.
皮部呈红棕色，有6～8处向内嵌入木质部
C.
木质部与韧皮部相间排列3～8层，呈偏心性半圆状环
D.
有多层同心性环纹
E.
有云锦状花纹
【单选题】Read the section "Rats Jumped With Joy." Which sentence from the section explains a reason why playing hide-and-seek can help rats?
A.
They would not make the same victory cry when they were found.
B.
The scientists think that hide-and-seek might be a very old game.
C.
Games like hide-and-seek can help small animals like rats.
D.
They can learn to hide from predators.
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