皮皮学，免费搜题
登录
搜题
【单选题】
顶点在原点,坐标轴为对称轴,且经过点(-3,-3)的抛物线的方程为( )。
A.
B.
C.
或
D.
或
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】打开浓盐酸、浓硝酸、浓氨水等试剂的瓶塞时,应在()中进行。
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品库
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂瓶塞时，进行操作的地点是（）
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品库
E.
窗口
查看完整题目与答案
【简答题】什么叫相变？按照相变机理来划分，可分为哪些相变？
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂瓶塞时，其适宜的环境应在( )。
A.
药品库
B.
冷水浴
C.
通风橱
D.
走廊
E.
窗口
查看完整题目与答案
【多选题】【 Cultural knowledge 】 Answer the following question according to your personal knowledge. (There are more than 1 correct answer s .) (1) Try to find out which statements are TRUE about Ralph Waldo Em...
A.
He is an American essayist, lecturer and poet.
B.
He often is positioned as the “ father ” of American literature.
C.
He led the transcendentalist movement( 超验主义运动 ) of the mid-19th century.
D.
He was seen as a champion of individualism.
查看完整题目与答案
【单选题】The circuit is shown in the figure, we can find out that when the resistor R becomes larger, which of the following statements is right.Choose A,B,C or D.
A.
I1 is not changed. I1不变
B.
I2 is not changed. I2不变
C.
I3 is not changed. I3不变
查看完整题目与答案
【单选题】等摩尔二元酸和二元胺缩聚,平衡常数为1000,在封闭体系中反应,则平均聚合度最大能达到
A.
26
B.
33
C.
60
D.
100
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂的瓶塞时,应在( )中进行:
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品柜
查看完整题目与答案
【简答题】什么叫相变?按照相变机理来划分,可分为哪些相变?
查看完整题目与答案
【单选题】Which of the following statements can NOT explain the fact that it is not easy to find out what people need?
A.
No two people have the same nutritional needs.
B.
It takes many years to reach a scientific conclusion as to the effect of a certain diet.
C.
Nutritionists do know the range of intake of, say, calcium that different people need
D.
None of the above.
查看完整题目与答案
相关题目：
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂的瓶塞时,应在()中进行。
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品库
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂瓶塞时，进行操作的地点是（）
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品库
E.
窗口
查看完整题目与答案
【简答题】什么叫相变？按照相变机理来划分，可分为哪些相变？
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂瓶塞时，其适宜的环境应在( )。
A.
药品库
B.
冷水浴
C.
通风橱
D.
走廊
E.
窗口
查看完整题目与答案
【多选题】【 Cultural knowledge 】 Answer the following question according to your personal knowledge. (There are more than 1 correct answer s .) (1) Try to find out which statements are TRUE about Ralph Waldo Em...
A.
He is an American essayist, lecturer and poet.
B.
He often is positioned as the “ father ” of American literature.
C.
He led the transcendentalist movement( 超验主义运动 ) of the mid-19th century.
D.
He was seen as a champion of individualism.
查看完整题目与答案
【单选题】The circuit is shown in the figure, we can find out that when the resistor R becomes larger, which of the following statements is right.Choose A,B,C or D.
A.
I1 is not changed. I1不变
B.
I2 is not changed. I2不变
C.
I3 is not changed. I3不变
查看完整题目与答案
【单选题】等摩尔二元酸和二元胺缩聚,平衡常数为1000,在封闭体系中反应,则平均聚合度最大能达到
A.
26
B.
33
C.
60
D.
100
查看完整题目与答案
【单选题】打开浓盐酸、浓硝酸、浓氨水等试剂的瓶塞时,应在( )中进行:
A.
冷水浴
B.
走廊
C.
通风橱
D.
药品柜
查看完整题目与答案
【简答题】什么叫相变?按照相变机理来划分,可分为哪些相变?
查看完整题目与答案
【单选题】Which of the following statements can NOT explain the fact that it is not easy to find out what people need?
A.
No two people have the same nutritional needs.
B.
It takes many years to reach a scientific conclusion as to the effect of a certain diet.
C.
Nutritionists do know the range of intake of, say, calcium that different people need
D.
None of the above.
查看完整题目与答案