皮皮学，免费搜题
登录
搜题
【简答题】
数列 中， ， ， （1）若数列 为公差为11的等差数列，求 （2）若数列 为以 为首项的等比数列，求数列 的前m项和
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】对于char ch1[20],ch2[20];strcmp(ch1,ch2);,说法正确的是( )。
A.
若ch1==ch2,则 strcmp(ch1,ch2)返回1
B.
若ch1==ch2,则 strcmp(ch1,ch2)返回0
C.
若ch1＞ch2,则 strcmp(ch1,ch2)返回1
D.
若chi＜ch2,则 strcmp(ch1,ch2)返回1
查看完整题目与答案
【单选题】We can infer from the passage that scientists are ______.
A.
writing reports
B.
observing what happened to San Francisco
C.
providing more information about the California Earthquake
D.
learning more about earthquakes
查看完整题目与答案
【单选题】It can be inferred from the passage that the Scots
A.
have been observing Mr. Cameron's movements.
B.
form. an unfavorable impression of Mr. Cameron.
C.
expect Mr. Cameron to uphold justice.
D.
doubt about Mr. Cameron's ability.
查看完整题目与答案
【单选题】There was no more wood so we watched the campfire burn _____.
A.
down
B.
off
C.
over
D.
out
查看完整题目与答案
【单选题】Brian Wood watched his financial life ____ downward just when he thought he had overcome the obstacles which had been dominating his past.
A.
surf
B.
spiral
C.
comply
D.
donate
查看完整题目与答案
【单选题】前牙咬切食物的生物杠杆是
A.
Ⅰ类杠杆
B.
Ⅱ类杠杆
C.
Ⅰ和Ⅱ类杠杆
D.
Ⅲ类杠杆
E.
Ⅰ和Ⅲ类杠杆
查看完整题目与答案
【单选题】Brian thinks that a good strategy for dealing with problems is to
A.
react as soon as they happen.
B.
avoid discussing them with staff
C.
be prepared for them
查看完整题目与答案
【单选题】Brian Wood watched his financial life _______ downward just when he thought he had overcome the obstacles which had been dominating his past.
A.
reclaim
B.
spend
C.
split
D.
spiral
查看完整题目与答案
【判断题】Brian watched a movie alone this afternoon.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The best estimate of the wind direction at sea level can be obtained from observing the direction of the ______.
A.
cloud movement
B.
vessel heading
C.
waves
D.
swells
查看完整题目与答案
相关题目：
【单选题】对于char ch1[20],ch2[20];strcmp(ch1,ch2);,说法正确的是( )。
A.
若ch1==ch2,则 strcmp(ch1,ch2)返回1
B.
若ch1==ch2,则 strcmp(ch1,ch2)返回0
C.
若ch1＞ch2,则 strcmp(ch1,ch2)返回1
D.
若chi＜ch2,则 strcmp(ch1,ch2)返回1
查看完整题目与答案
【单选题】We can infer from the passage that scientists are ______.
A.
writing reports
B.
observing what happened to San Francisco
C.
providing more information about the California Earthquake
D.
learning more about earthquakes
查看完整题目与答案
【单选题】It can be inferred from the passage that the Scots
A.
have been observing Mr. Cameron's movements.
B.
form. an unfavorable impression of Mr. Cameron.
C.
expect Mr. Cameron to uphold justice.
D.
doubt about Mr. Cameron's ability.
查看完整题目与答案
【单选题】There was no more wood so we watched the campfire burn _____.
A.
down
B.
off
C.
over
D.
out
查看完整题目与答案
【单选题】Brian Wood watched his financial life ____ downward just when he thought he had overcome the obstacles which had been dominating his past.
A.
surf
B.
spiral
C.
comply
D.
donate
查看完整题目与答案
【单选题】前牙咬切食物的生物杠杆是
A.
Ⅰ类杠杆
B.
Ⅱ类杠杆
C.
Ⅰ和Ⅱ类杠杆
D.
Ⅲ类杠杆
E.
Ⅰ和Ⅲ类杠杆
查看完整题目与答案
【单选题】Brian thinks that a good strategy for dealing with problems is to
A.
react as soon as they happen.
B.
avoid discussing them with staff
C.
be prepared for them
查看完整题目与答案
【单选题】Brian Wood watched his financial life _______ downward just when he thought he had overcome the obstacles which had been dominating his past.
A.
reclaim
B.
spend
C.
split
D.
spiral
查看完整题目与答案
【判断题】Brian watched a movie alone this afternoon.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The best estimate of the wind direction at sea level can be obtained from observing the direction of the ______.
A.
cloud movement
B.
vessel heading
C.
waves
D.
swells
查看完整题目与答案