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【多选题】
PECVD的主要目的是?A.
减少光的反射，提高电池片对光的吸收
B.
氢钝化，减少电池片表面覆合。
C.
染色，为光伏提供不同颜色。
D.
保护，防止水蒸气或腐蚀性气体的影响。
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A.
正确
B.
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A.
M ulti-digits carry 50 times more information than common semantic ones.
B.
M ulti-digits carry 1 0 times more information than common semantic ones.
C.
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D.
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A.
Major coffee producers and their respective yield.
B.
Coffee farming in Jamaica.
C.
The condition of Jamaican coffee growers.
D.
Their favorite coffee.
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