皮皮学，免费搜题
登录
搜题
【多选题】
相对密度测定时,下列说法正确的是( )。A.
除另有规定外，温度为20℃±0.5℃
B.
盛满供试液的比重瓶规定温度的水浴中放置24h
C.
比重瓶应装满溶液，不得有空隙
D.
相对密度测定时，相对的是乙醇的密度
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】This type of learning, however, is called conditioning. The animal simply learns that when it performs a particular behavior, it gets a reward, usually a fish. Many animals, including rats, birds, and...
A.
conditioned
B.
reluctant
C.
inclined
D.
invited
【单选题】However, when ______teams to complete tasks at school, we are often hardly aware of this.
A.
forming
B.
to form
C.
formed
D.
be forming
【单选题】《中华民国临时约法》的性质是( )。
A.
无产阶级共和国性质的法典
B.
大地主大资产阶级辩护的法典
C.
资产阶级共和国宪法性质的法典
D.
代表了广大中小资产阶级及无产阶级利益的法典
【简答题】When a dog bites a man, it usually doesn’t make news. However, this saying change when Beijing and several other Chinese cities announced the “Civilized Dog Raising” campaign in November. The governme...
【单选题】We met the young couple at a party three weeks ago. __________ we've had no further communication.
A.
Thereof
B.
Thereby
C.
Thereafter
D.
Thereabouts
相关题目：