logo - 刷刷题
下载APP
【单选题】

8次射击,命中3次,其中恰有2次连续命中的情形有________种.( )

A.
15
B.
30
C.
48
D.
252
题目标签：连续射击
举报
相关题库：排列与组合题库
参考答案：
参考解析：
.
刷刷题刷刷变学霸
举一反三

【简答题】设函数f(x)在(-1，1)内具有二阶连续导数，且满足f’(0)=1，则=______．
查看完整题目与答案

【简答题】设若f(x)在x=1处连续，则a=______．
查看完整题目与答案

【简答题】设f″(x)连续，f(x)≠0，则dx=____________．
查看完整题目与答案

【单选题】设函数f(x)连续，，则F’(x)=______。
A.
-f(x2)
B.
f(x2)
C.
-2xf(x2)
D.
2xf(x2)
查看完整题目与答案

【简答题】设函数f(x)连续，则当x＞0时，有=（）。 设函数f(x)连续，则当x＞0时，有=（）。
查看完整题目与答案

【单选题】A．不仅可导，导数也连续 B．不连续 C．连续，不可导 D．连续且可导
A.
在X=0处（）。
查看完整题目与答案

【简答题】设φ(x)在[0，1]上具有连续导数，且φ(0)=0，φ(1)=1，证明：
查看完整题目与答案

【单选题】​设具有一阶连续导数，，则是在处可导的（ ）.​
A.
充分但非必要条件
B.
既非充分也非必要条件
C.
充分且必要条件
D.
必要但非充分条件
查看完整题目与答案

【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
The young man was good at shooting.
B.
Mr.Turner liked the young man very much.
C.
Mr.Turner disliked the young man.
查看完整题目与答案

【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
Worked as a guard.
B.
Worked as a driver.
C.
Worked as a teacher.
查看完整题目与答案