皮皮学，免费搜题
登录
搜题
【简答题】
设a 0 为常数，且a n =3 n-1 -2a n-1 （n∈N）。 （1）证明：对任意n≥1， ； （2）假设对任意n≥1有a n ＞a n-1 ，求a 0 的取值范围。
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】食醋样品的检测中，应该先用什么将其pH调节至中性。
A.
20%-30%灭菌碳酸钠
B.
40%-50%灭菌碳酸钠
C.
20%-30%碳酸钠
D.
40%-50%碳酸钠
查看完整题目与答案
【简答题】8 Complete the sentences. ► She can wear tight jeans because she has such a good figure . 1 I bought some pink shoes and a ____ handbag; they look great together. 2 I'd love to be like M...
查看完整题目与答案
【简答题】用所给词的正确形式填空。 1. May I _____ (use) your rubber? 2. Can you_____ (turn) on the lights for me? 3. I will do what I can _____ (cheer) my friend up. 4.  _____  (friend), I go home by bus. 5. I want go know...
查看完整题目与答案
【判断题】幽默是人类智慧的产物,是一种高品位的情感活动。
A.
正确
B.
错误
查看完整题目与答案
【单选题】对于精血亏(损)虚所致腰酸脚软、头晕眼花、耳鸣、耳聋、须发早自等证,以下哪种药物最宜:
A.
当归
B.
熟地
C.
玉竹
D.
山药
E.
龟甲
查看完整题目与答案
【简答题】be sure to other than if possible give away deal with in addition (1) I want to avoid the rush-hour traffic __________________________. (2) ___________________ a pai...
查看完整题目与答案
【简答题】用所给词的正确形式填空。 1. May I (use) your rubber? 2. Can you (turn) on the lights for me? 3. I will do what I can (cheer) my friend up. 4. (final). I go home by bus. 5. I want go know what (do) next. 6. These ...
查看完整题目与答案
【单选题】对于精血亏(损)虚所致腰酸脚软、头晕眼花、耳鸣、耳聋、须发早自等证,以下哪种药物最宜?
A.
当归
B.
熟地
C.
玉竹
D.
山药
E.
龟板
查看完整题目与答案
【简答题】根据汉语提示、首字母或用所给词的正确形式完成句子。 1. I want to buy a teddy bear. But I don't have ________(足够的) money. 2. In our English Club I often ________(练习、操练)English with my friends. 3. Does this sentence _________ (听...
查看完整题目与答案
【简答题】根据对话情景，补全对话。 A: 1______ sir? B: Yes,I'm looking for a silk shirt which goes with my trousers. A: This way please.  2______ B: I like light blue. Does it match my trousers? A: 3______ B：A size large. A...
查看完整题目与答案
相关题目：
【单选题】食醋样品的检测中，应该先用什么将其pH调节至中性。
A.
20%-30%灭菌碳酸钠
B.
40%-50%灭菌碳酸钠
C.
20%-30%碳酸钠
D.
40%-50%碳酸钠
查看完整题目与答案
【简答题】8 Complete the sentences. ► She can wear tight jeans because she has such a good figure . 1 I bought some pink shoes and a ____ handbag; they look great together. 2 I'd love to be like M...
查看完整题目与答案
【简答题】用所给词的正确形式填空。 1. May I _____ (use) your rubber? 2. Can you_____ (turn) on the lights for me? 3. I will do what I can _____ (cheer) my friend up. 4.  _____  (friend), I go home by bus. 5. I want go know...
查看完整题目与答案
【判断题】幽默是人类智慧的产物,是一种高品位的情感活动。
A.
正确
B.
错误
查看完整题目与答案
【单选题】对于精血亏(损)虚所致腰酸脚软、头晕眼花、耳鸣、耳聋、须发早自等证,以下哪种药物最宜:
A.
当归
B.
熟地
C.
玉竹
D.
山药
E.
龟甲
查看完整题目与答案
【简答题】be sure to other than if possible give away deal with in addition (1) I want to avoid the rush-hour traffic __________________________. (2) ___________________ a pai...
查看完整题目与答案
【简答题】用所给词的正确形式填空。 1. May I (use) your rubber? 2. Can you (turn) on the lights for me? 3. I will do what I can (cheer) my friend up. 4. (final). I go home by bus. 5. I want go know what (do) next. 6. These ...
查看完整题目与答案
【单选题】对于精血亏(损)虚所致腰酸脚软、头晕眼花、耳鸣、耳聋、须发早自等证,以下哪种药物最宜?
A.
当归
B.
熟地
C.
玉竹
D.
山药
E.
龟板
查看完整题目与答案
【简答题】根据汉语提示、首字母或用所给词的正确形式完成句子。 1. I want to buy a teddy bear. But I don't have ________(足够的) money. 2. In our English Club I often ________(练习、操练)English with my friends. 3. Does this sentence _________ (听...
查看完整题目与答案
【简答题】根据对话情景，补全对话。 A: 1______ sir? B: Yes,I'm looking for a silk shirt which goes with my trousers. A: This way please.  2______ B: I like light blue. Does it match my trousers? A: 3______ B：A size large. A...
查看完整题目与答案