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【单选题】
植物甲与植物乙的净光合速率随叶片温度()变化的趋势如图所示。下列叙述错误的是( )A.
植物甲和乙光合作用所需要的能量都来自太阳能
B.
在36～50 ℃时,植物甲的净光合速率比植物乙的高
C.
25 ℃时,植物甲的光合与呼吸速率的差值不同于植物乙的
D.
35 ℃时,甲、植物的光合与呼吸速率的差值均为0
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】第五十五届( )安全会议于 2月15日至17日举行。600多名来自世界各国的安全政策、商贸、民生领域的专家将出席此次会议,围绕欧洲自主发展、跨大西洋合作、大国竞争这些重要议题进行深入讨论。
A.
巴黎
B.
伦敦
C.
柏林
D.
慕尼黑
【单选题】_____ is known to all that the Amber Room belongs to the Russians.
A.
As
B.
which
C.
It
D.
What
【单选题】当晶体三极管要工作在电流放大状态，外部条件应满足( )。
A.
发射结反偏，集电结反偏
B.
发射结反偏，集结正偏
C.
发射结正偏，集电结反偏
D.
发射结正偏，集电结正偏
【单选题】Among the following physiological activities, what belongs to conditioned reflex is
A.
cough results from respiratory mucosa stimulation by secretions or foreigns
B.
blinking caused by foreigns touching the cornea
C.
the lower leg extension caused by tap quadrant tendon below the patella
D.
The limbs are painful and retract when hurt by harmful stimulation
E.
saliva secretion caused by smell the fragrance of food
【单选题】下列 _____ 关键字通常用赖对对象加锁,从而似的对对象的访问是排他的。
A.
serialize
B.
transient
C.
synchronized
D.
static
【单选题】What is the main idea of this passage?
A.
Modem society only belongs to the young.
B.
Modem life has brought new problems to the old.
C.
Today's young people are happier than their parents.
D.
It is necessary to take better care of the old people.
【简答题】“字字看来皆是血，十年辛苦不寻常”描述的是名著()的成书过程。
【多选题】What belongs to the list of the emotions evoked most often by public speakers?
A.
guilt
B.
reverence
C.
compassion
D.
pride
相关题目：
【单选题】_____ is known to all that the Amber Room belongs to the Russians.
A.
As
B.
which
C.
It
D.
What