皮皮学，免费搜题
登录
搜题
【简答题】
线描装饰画元素练习
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于关键酶的叙述错误的是（）。
A.
关键酶常位于代谢途径的第一步反应
B.
关键酶在代谢途径中活性最高，所以才对整个代谢途径的流量起定作用
C.
关键酶常是变构酶
D.
受激素调节的酶常是关键酶
E.
关键酶常催化单向反应或非平衡反应
【单选题】It's seven o'clock. Tom, will you please ______ the TV? [ ]
A.
turn up
B.
turn on
C.
turn down
D.
turn off
【简答题】发源；发生 v. o_ _ _ _ _ _ _ _
【单选题】It's already eight o'clock, _____the light. [ ]
A.
turn on
B.
turn down
C.
turn up
D.
turn out
【简答题】认为战争用以解决实力集团之间,在一定发展阶段上的矛盾的一种的最高斗争形式。()(正确选A,错误选D)A. B. C. D.
【单选题】It’s already seven o’clock, _____the light. [ ]
A.
turn on
B.
turn down
C.
turn up
D.
turn out
【单选题】What else could cause the leaves to turn yellow in the fall? It's got to be the cold weather!
A.
this may well just be coincidence
B.
the stated “cause” might really be the effect, and the stated “effect” might really be the cause
C.
the “cause” and “effect” might actually both be the effects of a third thing
D.
legitimate cause and effect
相关题目：