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【单选题】
下列过程属于正反馈调节的是A.
排便反射
B.
降压反射
C.
体温调节
D.
渴了喝水
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反馈参考答案：
举一反三
【简答题】If they put effort ______ everything, there is no limit to what they can do.
【多选题】下面描述流体流动的诗句有哪些？
A.
“千古兴亡多少事？悠悠。不尽长江滚滚流”（辛弃疾）
B.
“日照香炉生紫烟， 遥看瀑布挂前川。 飞流直下三千尺， 疑是银河落九天”（李白）
C.
风乍起，吹皱一池春水（冯延巳）
D.
“六朝旧事随流水，但寒烟衰草凝绿”（王安石）
【简答题】飞流直下三千尺，疑是银河落九天描述的是哪座山？
【单选题】Hardly_________the phoneI was told that the hotel had been booked full．A．I had picked up；whenB．ha
A.
34．Hardly_________the phone I was told that the hotel had been booked full． A．I had picked up；when
B.
had I picked up；then
C.
had I picked up；when
D.
I had picked up；then
【简答题】There is no limit to the photosynthetic rate in plants such as ____________.
【单选题】He wanted to fly around the world to show young people that there is no limit to your dreams if you really want something.
A.
simple
B.
compound
C.
complex
D.
compound-complex
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