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【简答题】
用高速离心机打碎植物细胞，获得可以进行光合作用的离体叶绿体，进行如下图所示的实验。请分析回答下列问题： (1)实验A中_______(有、没有)糖类产生，原因是_______。 (2)因为光合作用的光反应阶段是在_______中进行，所以实验B中_______(有、没有)糖类产生。 (3)若让实验C中产生糖类，锥形瓶中至少还应该加入光反应的产物_______。
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皮皮学刷刷变学霸
举一反三
【单选题】
A.
They could break people's legs
B.
They could sometimes terrify adults
C.
They could fly against a strong wind
D.
They could knock people unconscious
【简答题】Questions 12 to 15 are based on the conversation you have just heard. 12.A) He is the only boy in his family. B) He becomes tearful in wind. C) He has stopped terrible faces. D) He is his teach...
【简答题】经营杠杆能够扩大市场和生产等不确定性因素对利润变动的影响。（ ）
【简答题】Questions 12 to 15 are based on the conversation you have just heard. 12. A) He becomes tearful in wind. B) He is the only boy in his family. C) He is his teacher’s favorite student. D) He has stopped...
【简答题】为了调研雄安新区的空气质量状况,某课题组对雄县、容城、安新三县空气质量进行调查,按地域特点在三县内设置空气质量观测点.已知三县内观测点的个数分别为 6 , y , z ,依次构成等差数列,且 6 , y , z + 6 成等比数列,若采用分层抽样的方法抽取 12 个观测点的数据,则应从容城抽取的观测点的数据个数为 ( ) A . 8 B . 6 C . 4 D . 2
【单选题】关于肩胛骨的叙述,错误的是
A.
为三角形的扁骨
B.
后面由肩胛冈分为冈上窝和冈下窝
C.
下角平对第7肋(或第7肋间隙)
D.
喙突的外侧有肩胛切迹
E.
上角平对第2肋上缘
【单选题】
A.
They could break pp ’ s legs
B.
They could sometimes terrify adults
C.
They could fly against a strong wind
D.
They could knock pp unconscious
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