![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
‘Water-resistant’ is the feature of a product.
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
A. metacentric point
B. metacenter
C. metacentric radius
D. tipping center
A、Can the common cold be cured?
B、For centuries humans have sought ways to alleviate the discomfort associated with this minor illness, trying everything from special baths to special healing stones.
C、Today, thanks to a focused research effort, science is beginning to make headway in finding a cure.
A、ACE2 protein
B、Spike protein
C、Albumin
D、Hemoglobin
E、Glycoprotein
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