皮皮学，免费搜题
登录
搜题
【单选题】
曲线 在(1,-1,1)点处指向与t增长方向相反的一个切向量为( )
A.
(1,-2,3)
B.
(-1,2,-3)
C.
(1,2,3)
D.
(-1,-2,-3)
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】The teacher asked a question, but it was _____ that nobody could answer it
A.
very difficult
B.
too difficult
C.
difficult enough
D.
so difficult
查看完整题目与答案
【多选题】消费者市场的主要特点有( )
A.
广泛性
B.
分散性
C.
伸缩性
D.
高弹性
E.
发展性
查看完整题目与答案
【单选题】Miss Gao asked a question, but it was ____ that nobody could answer it.
A.
very difficult
B.
too difficult
C.
difficult enough
D.
so difficult
查看完整题目与答案
【单选题】听力原文：W: Ron, what are you doing? M: Ah, nothing. I'm just looking up some information on the Internet. W: Like what? Let me see. M: No, no, it's okay. I mean, you know. W: Baldness? What are you looki...
A.
He looks for some information far his hair loss.
B.
He seeks some information for his company.
C.
He relaxes himself by reading some news on the Net.
D.
He emails some information about the treatment of hah' loss.
查看完整题目与答案
【单选题】You have the choice of going on vacation to Florida for one week, staying at work for the week, or spending the week doing fix-up projects around your house. If you decide to go to Florida, the opport...
A.
working and doing fix-up projects.
B.
working or doing fix-up projects, depending on which you would have done otherwise.
C.
working because you would be giving up dollars.
D.
nothing
E.
cause you will enjoy the trip to Florida.
查看完整题目与答案
【单选题】Miss Gao asked a question ,but it was ______that nobody could answer it
A.
Very difficult
B.
Too difficult
C.
Difficult enough
D.
So difficult
查看完整题目与答案
【单选题】听力原文：Jane: Ron, what are you doing? Ron: Ah, nothing. I'm just looking up some information on the Internet. Jane: Like what? Let me see. Ron: No, no, it's okay. I mean, you know... Jane: Baldness? Wha...
A.
Extreme stress.
B.
Hair loss.
C.
Declining health.
D.
Unemployment.
查看完整题目与答案
【单选题】You have the choice of going on vacation to Florida for one week, staying at work for the week, or spending the week doing fix-up projects around your house. If you decide to go to Florida, the opport...
A.
working and doing fix-up projects.
B.
working or doing fix-up projects, depending on which you would have done otherwise.
C.
working because you would be giving up dollars.
D.
nothing because you will enjoy the trip to Florida.
查看完整题目与答案
【单选题】酶制剂一般添加到（）日粮中。
A.
乳牛精料
B.
哺乳母猪料
C.
种公猪料
D.
生长小猪料
查看完整题目与答案
【单选题】听力原文：Jane: Ron, what are you doing? Ron: Ah, nothing. I'm just looking up some information on the Internet. Jane: Like what? Let me see. Ron: No, no, it's okay. I mean, you know... Jane: Baldness? Wha...
A.
Extreme stress.
B.
Hair loss.
C.
Declining health.
D.
Unemployment.
查看完整题目与答案
相关题目：
【单选题】The teacher asked a question, but it was _____ that nobody could answer it
A.
very difficult
B.
too difficult
C.
difficult enough
D.
so difficult
查看完整题目与答案
【多选题】消费者市场的主要特点有( )
A.
广泛性
B.
分散性
C.
伸缩性
D.
高弹性
E.
发展性
查看完整题目与答案
【单选题】Miss Gao asked a question, but it was ____ that nobody could answer it.
A.
very difficult
B.
too difficult
C.
difficult enough
D.
so difficult
查看完整题目与答案
【单选题】听力原文：W: Ron, what are you doing? M: Ah, nothing. I'm just looking up some information on the Internet. W: Like what? Let me see. M: No, no, it's okay. I mean, you know. W: Baldness? What are you looki...
A.
He looks for some information far his hair loss.
B.
He seeks some information for his company.
C.
He relaxes himself by reading some news on the Net.
D.
He emails some information about the treatment of hah' loss.
查看完整题目与答案
【单选题】You have the choice of going on vacation to Florida for one week, staying at work for the week, or spending the week doing fix-up projects around your house. If you decide to go to Florida, the opport...
A.
working and doing fix-up projects.
B.
working or doing fix-up projects, depending on which you would have done otherwise.
C.
working because you would be giving up dollars.
D.
nothing
E.
cause you will enjoy the trip to Florida.
查看完整题目与答案
【单选题】Miss Gao asked a question ,but it was ______that nobody could answer it
A.
Very difficult
B.
Too difficult
C.
Difficult enough
D.
So difficult
查看完整题目与答案
【单选题】听力原文：Jane: Ron, what are you doing? Ron: Ah, nothing. I'm just looking up some information on the Internet. Jane: Like what? Let me see. Ron: No, no, it's okay. I mean, you know... Jane: Baldness? Wha...
A.
Extreme stress.
B.
Hair loss.
C.
Declining health.
D.
Unemployment.
查看完整题目与答案
【单选题】You have the choice of going on vacation to Florida for one week, staying at work for the week, or spending the week doing fix-up projects around your house. If you decide to go to Florida, the opport...
A.
working and doing fix-up projects.
B.
working or doing fix-up projects, depending on which you would have done otherwise.
C.
working because you would be giving up dollars.
D.
nothing because you will enjoy the trip to Florida.
查看完整题目与答案
【单选题】酶制剂一般添加到（）日粮中。
A.
乳牛精料
B.
哺乳母猪料
C.
种公猪料
D.
生长小猪料
查看完整题目与答案
【单选题】听力原文：Jane: Ron, what are you doing? Ron: Ah, nothing. I'm just looking up some information on the Internet. Jane: Like what? Let me see. Ron: No, no, it's okay. I mean, you know... Jane: Baldness? Wha...
A.
Extreme stress.
B.
Hair loss.
C.
Declining health.
D.
Unemployment.
查看完整题目与答案