2013年成人高考高升本每日一练(7月24日)
在线测试本批《每日一练》试题,可查看答案及解析,并保留做题记录 >> 在线做题
单项选择题
1、It is often said that ____teachers have _______very easy life.
A. /,/
B. /,a
C. the,/
D. the, a
2、__________ you don’t like him is none of my business.

3、He laid his hopes__________you.

4、

填空题
5、 如图11—20所示,金属框架平面与磁感线垂直,假定金属棒与框架电阻可忽略,电流计内阻R=20Ω,磁感应强度B=1T,导轨宽50cm,棒以2m/s的速度做切割磁感线运动,那么电路中感应电动势E=__________V,电路中电流强度I=__________A,电流的总功率=__________w,为了维持金属棒做匀速运动,外力F的大小为__________N,方向为__________,外力的功率为__________w.

6、


7、 图6-8(a)所示的长度为 ,图6-8(b)中所示的电流为 .

8、

简答题
9、

10、已知等比数列{an}中,a1=16,公比q=(1/2)
(Ⅰ)求数列{an}的通项公式;
(Ⅱ)若数列{an}的前n项的和Sn=124,求n的值
1、It is often said that ____teachers have _______very easy life.
A. /,/
B. /,a
C. the,/
D. the, a
2、__________ you don’t like him is none of my business.

3、He laid his hopes__________you.

4、

填空题
5、 如图11—20所示,金属框架平面与磁感线垂直,假定金属棒与框架电阻可忽略,电流计内阻R=20Ω,磁感应强度B=1T,导轨宽50cm,棒以2m/s的速度做切割磁感线运动,那么电路中感应电动势E=__________V,电路中电流强度I=__________A,电流的总功率=__________w,为了维持金属棒做匀速运动,外力F的大小为__________N,方向为__________,外力的功率为__________w.

6、


7、 图6-8(a)所示的长度为 ,图6-8(b)中所示的电流为 .

8、

简答题
9、

10、已知等比数列{an}中,a1=16,公比q=(1/2)
(Ⅰ)求数列{an}的通项公式;
(Ⅱ)若数列{an}的前n项的和Sn=124,求n的值