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【多选题】
数据流程图一般由以下基本元素组成( )A.
数据存储
B.
数据词典
C.
数据流
D.
数据处理
E.
外部实体
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反馈参考答案：
举一反三
【单选题】It may be inferred from the passage that ______.
A.
bacteria can be most easily killed by removal of moisture
B.
drying out a house will eliminate the risk of airborne infection
C.
hot-air heating is better than steam heating because steam heating uses water
D.
none of the above
【单选题】It may be inferred from the passage that ______.
A.
bacteria can be most easily killed by removal of moisture
B.
drying out a house will eliminate the risk of airborne infection
C.
hot-Mr heating is better than steam heating because steam heating uses water
D.
none of the above
【简答题】有一位游客容易发火,喜欢与人争论问题,精力充沛,如何接待这类旅游者?
【单选题】元素1，2, 3, 4，5依次进入初始为空的栈中，若进栈后可停留、可出栈，直到所有元素都出栈，则在所有可能的出栈序列中，以4开头的序列有（ ）个？
A.
4
B.
3
C.
5
D.
6
【单选题】It may be inferred from the passage that ______.
A.
bacteria can be most easily killed by removal of moisture.
B.
drying out a house will eliminate the risk of airborne infection.
C.
hot-air heating is better than steam heating because steam heating uses water.
D.
none of the above.
【单选题】They're making efforts to ( )their normally cumbersome bureaucracy.
A.
streamline
B.
plunge
C.
descent
D.
smash
【判断题】施工时通常采用小样板来操平找正地脚螺栓。小样板是由一块比立柱模板上口对角线稍长一点的木板或钢板制成,宽度约20cm左右(视地脚螺栓而定),其厚度一般为3~4cm。
A.
正确
B.
错误
【简答题】( ) has a pH normally falling between 6.5 and 6.7, which is suitable for bacteria grow.
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