How to play 2 times short crude oil fund?

2 times short crude oil fund play is as follows:

1. Buy crude oil-related funds.

2. In the domestic market, you can buy a small amount of funds of Southern Crude Oil, Cathay Pacific Commodity, Huabao Oil and Gas, Guangfa Oil, Yifangda Crude Oil, Jiashi Crude Oil, Huaan Petroleum and Nuoan Oil and Gas to achieve the goal of shorting crude oil funds twice. Investment is risky, please make a careful decision.

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