皮皮学，免费搜题
登录
搜题
【单选题】
含水率为5%的砂220g,将其干燥后的重量为。
A.
209g
B.
200g
C.
209.52g
D.
210g
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
【判断题】做体态时,尾椎要向后延伸。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it 's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Duri...
A.
he is a lazy person
B.
he refuses to follow his own energy cycle
C.
he is not sure when his energy is low
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Durin...
A.
he is a lazy person
B.
he is not sure why his energy is low
C.
he refuses to follow his own energy cycle
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【简答题】Do you ever find yourself getting really unhappy for almost no reason? Or suddenly feeling down without knowing why? Going from sadness to anger to joy in a matter of minutes can make many s feel ...
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Durin...
A.
he is a lazy person
B.
he refuses to follow his own energy cycle
C.
he is not sure when his energy is low
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【单选题】设计键连接的几项主要内容是：a.按轮毂长度选择键的长度 b.按使用要求选择键的适当类型c.按轴的直径选择键的剖面尺寸 d.对键进行必要的强度校核在具体设计时一般顺序为_________。
A.
b →a→c→d
B.
b→c→a→d
C.
a→c→b→d
D.
c→d→b→a
查看完整题目与答案
【简答题】字符串"sgabacbadfgbacst" 中存在( )个与字符串"ba"相同的子串。
查看完整题目与答案
【单选题】景气预警系统中绿色信号代表( )。
A.
经济过热
B.
经济稳定
C.
经济萧条
D.
经济波动过大
查看完整题目与答案
【单选题】设计键连接的几项主要内容是:a)按轮毂长度选择键的长度;b)按使用要求选择键的类型;c)按轴的直径选择键的剖面尺寸;d)对连接进行必要的强度校核。正确顺序应是 ( ) 。
A.
b-c-a-d
B.
b-a-c-d
C.
a-c-b-d
D.
c-d-b-a
查看完整题目与答案
【单选题】设计键 连接 的几项主要内容是 : a) 按轮彀长度选择键的长度 b)按使用要求选择键的主要类型 c)按轴的直径选择键的剖面尺寸 d)对联结进行必要的强度校核。 在具体设计时 ,一 般顺序是 __ 。
A.
b→c→a→d
B.
c→d→b→a
C.
a→c→b→d
D.
b→a→c→d
查看完整题目与答案
相关题目：
【判断题】做体态时,尾椎要向后延伸。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it 's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Duri...
A.
he is a lazy person
B.
he refuses to follow his own energy cycle
C.
he is not sure when his energy is low
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Durin...
A.
he is a lazy person
B.
he is not sure why his energy is low
C.
he refuses to follow his own energy cycle
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【简答题】Do you ever find yourself getting really unhappy for almost no reason? Or suddenly feeling down without knowing why? Going from sadness to anger to joy in a matter of minutes can make many s feel ...
查看完整题目与答案
【单选题】Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Durin...
A.
he is a lazy person
B.
he refuses to follow his own energy cycle
C.
he is not sure when his energy is low
D.
he is at his peak in the afternoon or evening
查看完整题目与答案
【单选题】设计键连接的几项主要内容是：a.按轮毂长度选择键的长度 b.按使用要求选择键的适当类型c.按轴的直径选择键的剖面尺寸 d.对键进行必要的强度校核在具体设计时一般顺序为_________。
A.
b →a→c→d
B.
b→c→a→d
C.
a→c→b→d
D.
c→d→b→a
查看完整题目与答案
【简答题】字符串"sgabacbadfgbacst" 中存在( )个与字符串"ba"相同的子串。
查看完整题目与答案
【单选题】景气预警系统中绿色信号代表( )。
A.
经济过热
B.
经济稳定
C.
经济萧条
D.
经济波动过大
查看完整题目与答案
【单选题】设计键连接的几项主要内容是:a)按轮毂长度选择键的长度;b)按使用要求选择键的类型;c)按轴的直径选择键的剖面尺寸;d)对连接进行必要的强度校核。正确顺序应是 ( ) 。
A.
b-c-a-d
B.
b-a-c-d
C.
a-c-b-d
D.
c-d-b-a
查看完整题目与答案
【单选题】设计键 连接 的几项主要内容是 : a) 按轮彀长度选择键的长度 b)按使用要求选择键的主要类型 c)按轴的直径选择键的剖面尺寸 d)对联结进行必要的强度校核。 在具体设计时 ,一 般顺序是 __ 。
A.
b→c→a→d
B.
c→d→b→a
C.
a→c→b→d
D.
b→a→c→d
查看完整题目与答案