皮皮学，免费搜题
登录
搜题
【单选题】
设x 1 ，x 2 ，x 3 ，…，x 10 的平均数为 . x ，方差为s 2 ，标准差为s，若s=0，则有（　　）
A.
. x =0
B.
s 2 =0且 . x =0
C.
x 1 =x 2 =…=x 10
D.
x 1 =x 2 =…=x 10 =0
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】Which of the following is NOT the definition of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which requires learners to arrive at an outcome.
查看完整题目与答案
【单选题】Which of the following statements about task-based language teaching is NOT true?
A.
Students should be given tasks to preform or problems to solve in the classroom.
B.
Students are task-driven.
C.
Task-based language teaching is student-centered.
D.
Task-based language teaching is teacher-centered.
查看完整题目与答案
【简答题】Task-based Language Teaching (TBL)
查看完整题目与答案
【简答题】听短文，填空。 I know I am a good person, because I have many friends. We work __ 1 __We help each other. We make__ 2 __ strong! I study a lot. I strive to do well in school. I do my homework and I study for...
查看完整题目与答案
【单选题】Which of the following is NOT the defination of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which acquires learners to arrive at an outcome.
查看完整题目与答案
【多选题】下列属于跨市套利的是()。
A.
卖出甲期货交易所7月小麦期货合约同时买入乙期货交易所7月小麦期货合约
B.
买入甲期货交易所9月菜粕期货合约同时卖出乙期货交易所9月菜粕期货合约
C.
卖出甲期货交易所7月原油期货合约,同时买入甲期货交易所7月豆油期货合约
D.
买入甲期货交易所5月白银期货合约同时买入甲期货交易所7月白银期货合约
查看完整题目与答案
【简答题】句型转换。 1. I have many friends here. (同义句) I have ________ ________ friends here. 2. They like baseball . (对画线部分提问) ________ ________ they like? 3. David likes Chinese books ? (对画线部分提问) ________ _______...
查看完整题目与答案
【多选题】下列属于跨市套利的是()
A.
卖出A期货交易所7月原油期货合约，同时买入A期货交易所7月豆油期货合约
B.
买入A期货交易所5月白银期货合约，同时买入A期货交易所7月白银期货合约
C.
买入A期货交易所9月菜粕期货合约，同时卖出B期货交易所9月菜粕期货合约
D.
卖出A期货交易所7月小麦期货合约，同时买入B期货交易所7月小麦期货合约
查看完整题目与答案
【单选题】Which is NOT the definition of a task in Task-based language teaching?
A.
Apiece of classroom work in which learners ’ attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose
C.
A range of workplans which have the overall purpose of facilitating language learning
D.
An activity which requires learners to arrive at an outcome
查看完整题目与答案
【判断题】Task-based Language Teaching is totally different from Communicative Language Teaching.
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】Which of the following is NOT the definition of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which requires learners to arrive at an outcome.
查看完整题目与答案
【单选题】Which of the following statements about task-based language teaching is NOT true?
A.
Students should be given tasks to preform or problems to solve in the classroom.
B.
Students are task-driven.
C.
Task-based language teaching is student-centered.
D.
Task-based language teaching is teacher-centered.
查看完整题目与答案
【简答题】Task-based Language Teaching (TBL)
查看完整题目与答案
【简答题】听短文，填空。 I know I am a good person, because I have many friends. We work __ 1 __We help each other. We make__ 2 __ strong! I study a lot. I strive to do well in school. I do my homework and I study for...
查看完整题目与答案
【单选题】Which of the following is NOT the defination of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which acquires learners to arrive at an outcome.
查看完整题目与答案
【多选题】下列属于跨市套利的是()。
A.
卖出甲期货交易所7月小麦期货合约同时买入乙期货交易所7月小麦期货合约
B.
买入甲期货交易所9月菜粕期货合约同时卖出乙期货交易所9月菜粕期货合约
C.
卖出甲期货交易所7月原油期货合约,同时买入甲期货交易所7月豆油期货合约
D.
买入甲期货交易所5月白银期货合约同时买入甲期货交易所7月白银期货合约
查看完整题目与答案
【简答题】句型转换。 1. I have many friends here. (同义句) I have ________ ________ friends here. 2. They like baseball . (对画线部分提问) ________ ________ they like? 3. David likes Chinese books ? (对画线部分提问) ________ _______...
查看完整题目与答案
【多选题】下列属于跨市套利的是()
A.
卖出A期货交易所7月原油期货合约，同时买入A期货交易所7月豆油期货合约
B.
买入A期货交易所5月白银期货合约，同时买入A期货交易所7月白银期货合约
C.
买入A期货交易所9月菜粕期货合约，同时卖出B期货交易所9月菜粕期货合约
D.
卖出A期货交易所7月小麦期货合约，同时买入B期货交易所7月小麦期货合约
查看完整题目与答案
【单选题】Which is NOT the definition of a task in Task-based language teaching?
A.
Apiece of classroom work in which learners ’ attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose
C.
A range of workplans which have the overall purpose of facilitating language learning
D.
An activity which requires learners to arrive at an outcome
查看完整题目与答案
【判断题】Task-based Language Teaching is totally different from Communicative Language Teaching.
A.
正确
B.
错误
查看完整题目与答案