皮皮学，免费搜题
登录
搜题
【多选题】
预应力混凝土的优点是A.
提高了构件的抗裂能力
B.
增大了构件的刚度
C.
充分利用高强度材料
D.
扩大了构件的适用范围
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】Home delivery or online shopping, ________ to all, makes it available for us to buy various goods conveniently. [ ]
A.
known
B.
knowing
C.
to be known
D.
having known
【简答题】___ snacky online content
【单选题】The result of the online experiment is that the people involved ______.
A.
improved their cognitive function
B.
did not increase their skills in games
C.
increased the skills in playing games but did not improve IQ
D.
had no improvement in playing games and intelligence tests
【单选题】贝多芬《第六交响曲》又称( ),这部作品比较具有描述性,在乐曲中甚至可以听出鸟鸣和流水声等。
A.
《欢乐颂》
B.
《英雄交响曲》
C.
《田园交响曲》
D.
《命运交响曲》
相关题目：