皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
用红外吸收光谱法测定有机物结构时,样品应该是
A.
单质
B.
纯物质
C.
混合物
D.
任何试样
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【判断题】The government of each province in Canada has no educational power.
A.
正确
B.
错误
【单选题】Each educational system is not perfect in a strict sense, which has its______.
A.
limitations
B.
line
C.
front
D.
advantage
【简答题】测量的四要素:被测对象、计量单位、测量方法、 _________。
【判断题】The government of each province in Canada has no educational power.
A.
正确
B.
错误
【单选题】肠腔中的氨基酸进入肠上皮细胞的转运方式为:
A.
易化扩散
B.
入胞
C.
单纯扩散
D.
吞噬
E.
主动转运
【单选题】Each educational system is not perfect in a strict sense, which has its ___________.
A.
limitations
B.
power
C.
features
D.
advantages
【简答题】Unlike some educational areas, educational technology is becoming more and more ( ) in formal and informal education each year.
【简答题】测量的四要素( )、( )、( )、( );
【判断题】In the United States, each state has its own educational system.
A.
正确
B.
错误
【单选题】肠腔中的氨基酸进入肠上皮细胞的转运方式为
A.
易化扩散
B.
入胞
C.
单纯扩散
D.
原发性主动转运
E.
继发性主动转运
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题