Doubt has objective basis and has positive effect in the course of knowledge.

疑问是有客观根据的；疑问在认识过程中有着积极的作用。

youdao

Conclusion: The traditional medicine has positive effect on CHB, it is worth spreading.

结论中医药治疗慢性乙肝疗效好，值得推广。

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Product performance, durability, ease of use, prestige, efficiency, reliability, responsiveness and privacy of website has positive effect on recreational value respectively.

产品绩效、耐久性、易用性、声望，以及网站的效率、响应性、可靠性和保密性对网民的娱乐价值有积极的影响作用。

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When something good happens, faith has a positive effect, the aura of it.

NEWYORKER: The Hardest Vote

In one respect, the scandal over Mr Grasso's pay has had a positive effect: it has accelerated changes that critics felt were long overdue at the exchange.

ECONOMIST: The people’s lawyer strikes again | The

There are a wide range of studies demonstrating that acupuncture has a positive effect, including evidence to suggest it works by deactivating pain centres in the brain.

BBC: NEWS | Health | Medical notes | Complementary medicines: A guide