如图甲所示,虚线上方空间有垂直线框平面的匀强磁场,直角扇形导线框绕垂直于线框平面的轴O以角速度ω匀速转动.设线框中感应电流方向以逆时针为正,那么在图乙中能正确描述线框从图甲中所示位置开始转动一周的过程中,线框内感应电流随时问变化情况的是( )
﹣﹣﹣ How did you come to Baoying?
﹣﹣﹣By high﹣speed rail.It ________ me only 28 minutes to get here.( )
spent
paid
lost
took
We ________ see which way to go if the stars do not twinkle(闪耀)so.( )
can not
should not
must not
need not
﹣﹣﹣Have you watched the film Gulliver's Travels?
﹣﹣﹣Yes,I ________ it during the Spring Festival.What about you?( )
watch
watched
will watch
have watched
﹣﹣﹣________ do you play basketball with your friends?
﹣﹣﹣ Only once a week.( )
How long
How much
How soon
How often
I can't believe you made the life-like cat out of paper.How _______ you are!( )
loyal
creative
helpful
organized