题目内容

91.茶叶中的水溶性维生素主要是()族和族维生素。

A.
B. H
C. E
D.

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93、 不同季节的茶叶中维生素的含量最高的是()。

A. 春茶
B. 暑茶
C. 秋茶
D. 冬片

95.由于乌龙茶制作时选用的是较成熟的芽叶做原料,属半发酵茶,冲泡时需用()的沸水。

A. 70~80℃
B. 90℃左右
C. 95℃以上
D. 80~90℃

Thesedays,moreandmorepeopleare_________(did/do/doing)theirshoppingonline.Oneofthebestthingsaboutonlineshoppingisthatitis________(convenient/risky/fake).Youcanshopanywhereandanytime.Sometimesyoucanfindthingscheaperonlinetoo.However,thereareconsofshoppingonline.Ontheonehand,youmayneed_________(paying/pay/topay)extrashippingcosts.Ontheotherhand,whenyoubuythingsonline,youneedtomwaittoo. Youwon'tgetthe______(refundpolicy/item)immediately,andwhenitfinally__________(arrives/arrived/arriving),itmaybedifferenttowhatyouexpected.

保持土壤肥力最差的是?

A. 砂土
B. 壤土
C. 黏土

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