皮皮学，免费搜题
登录
搜题
【判断题】
山梨酸对水的溶解度低，使用前要先将山梨酸溶解在乙醇、碳酸氢钠或碳酸钠的溶液里，随后再加入食品中．溶解时注意不要使用铜、铁容器。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】When Sue says that she and her husband are "loathe to lose their freedom just yet", she means______.
A.
they hate the idea of having children.
B.
they want to enjoy their freedom for a few more years, but they may consider having some kids.
C.
they are revolted by the idea of giving up their freedom.
【单选题】When the author says that it' s not crazy to think about the impact of this on evolution, he means_____.
A.
the progress in biography is so great that people feel astonished
B.
the progress in cryogenics is so great that people feel astonished
C.
the progress in information technology has great influence on human
D.
the progress in information technology is beneficial to human
【单选题】When Steve McDougal says 'It's not a financial hardship, but it is an incremental amount of money that's not required,' she means that ______.
A.
Green tag costs a lot of money.
B.
Green tag costs an extra amount of money.
C.
Green tag's is cost-effective.
D.
The cost on green tags is far less than the companies pay to purchase renewable power from suppliers.
【单选题】某电力工程招标项目,总投资3500万元,说法正确的是( )。
A.
施工单项合同额不到200万元的,可以不招标
B.
重要设备、材料采购,单项合同额不到100万元的,可以不招标
C.
勘察、设计或监理单项合同额不到500万元的,可以不招标
D.
勘察、设计、施工、监理、重要材料设备采购,全部必须招标
相关题目：