问题
多项选择题
关于流量计，正确的有（）
A.进气口可变型流量计，既能测量流量，也能调节流量
B.进气口可变型流量计，只能测量流量，不能调节流量
C.进气口固定型流量计，只能测量流量，不能调节流量
D.进气口固定型流量计，既能测量流量，又能调节流量
E.进气口可变型流量计的气流量值易受流量计出口处的气流阻力影响
答案
参考答案：A, C, E
搜题请搜索小程序“爱下问搜题”
关于流量计，正确的有（）
A.进气口可变型流量计，既能测量流量，也能调节流量
B.进气口可变型流量计，只能测量流量，不能调节流量
C.进气口固定型流量计，只能测量流量，不能调节流量
D.进气口固定型流量计，既能测量流量，又能调节流量
E.进气口可变型流量计的气流量值易受流量计出口处的气流阻力影响
参考答案：A, C, E
When I started riding a bike a couple of years ago, I didn't think my involvement would ever be more serious than the occasional short ride. But as I built strength, my friends _______me to step up my training and try some longer trips, The first one to come along was a 150-mile trip, the MS-150, an annual _______ that raises money to fight AIDS. When I registered，the idea seemed fantastic and I trained with ____.However，as the time for the ride approached，my selfdoubts ____ beyond my endurance(忍耐)．I ____ wanted to raise money for the charity，but I didn’t really want to bike all those miles for two days straight. The ride began on a beautiful Sunday morning in the Georgia countryside，and for the first few hours I felt ____.This was just the experience I had ____，and my spirits were high.__ __ by the end of the day，I felt tired out. If the body is ____ to the mind，here was evidence. Every ____ my brain pushed out seemed to travel right down to my legs. “I can’t handle this” became a leg cramp (抽筋)，and “Everyone else is a better rider” translated into ____ of breath. I was sure I’d have to ____. As I topped the crest (顶) of a hill，the beautiful sunset kept me going for a few minutes more. Then in the distance，I saw a lone woman riding very slowly ____ the bright red sun. I ___ that the person looked different in some way，but I couldn’t tell why. So I pushed myself to ___.There she was，riding along slowly but ____，with a slight and determined smile on her face and she had only one leg. My focus changed in that instant. For a whole day I’d been ____ my body. But now I knew it wasn’t the body，but the ___ that would help me reach my goal. It rained all the second day. I never saw the one-legged biker again，but I pushed on without ____，knowing she was out there with me somewhere. And at the end of the day，still feeling ____，I completed the 150mile trip.
|