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【单选题】
1627年(),标志着天文学上的哥白尼革命已经完成。A.
《行星列表》
B.
《天体运行规律》
C.
《开普勒三大定理》
D.
《鲁道夫星表》
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【简答题】今天是化学分组实验课，实验台上放着四瓶无标签的无色溶液．只见老师在黑板上写着实验的内容“酸、碱、盐溶液的鉴别”，及待测无标签药品的名称“Na 2 CO 3 溶液、NaOH溶液、Ca（OH） 2 溶液、稀盐酸”．下面是同学们的实验报告： 【实验目的】通过实验，学会酸、碱、盐溶液的鉴别． 【实验药品】①四瓶无标签的无色待测溶液；②酚酞试液． 【实验仪器】试管、胶头滴管、玻璃棒、试管刷等． 【实验方案】...
【单选题】When you reason from specific instances in a persuasive speech, you should _____.
A.
Reinforce your argument with statistics and testimony.
B.
Include at least one extended example among your specific instances.
C.
Avoid drawing conclusions from too few instances.
D.
All of the above.
E.
A and C only.
【单选题】When you reason from specific instances in a persuasive speech, you should
A.
reinforce your argument with statistics and testimony.
B.
include at least one extended example among your specific instances.
C.
avoid drawing conclusions from too few instances.
D.
all of the above.
E.
a and c only.
【单选题】When you ________, you progress from a number of particular facts to a general conclusion.
A.
reason from principles
B.
reason from instances
C.
make causal reasoning
D.
make ogical reasoning
【简答题】针叶管胞同时起___和___的作用。
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