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【多选题】
用血球板显微计数法计数酵母菌时,以下计数方法和原则中,正确的是 :A.
先用低倍镜找到血球计数板上的格子线，再换成油镜进行观察计数。
B.
压住中方格格子线的酵母菌，数上面的、左边的，不数下面的、右边的。
C.
计数时数出大方格中 “ 左上、左下、右上、右下 ” 或包括中间的四个或五个小方格的菌数，求出小方格平均菌数，再按公式计算样品菌数。
D.
出芽酵母，如果子细胞达到母细胞的一半，按照两个，如果不到一半，不计数。
E.
一个计数室容积为 0.1mm 3 ，样品菌数（个 /mL ） = 每平均数 ×400× 稀释倍数 ×10000 。
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【简答题】在油田脱水和集输过程的其他环节脱出的含水中,由于含有原油等主要( ),脱出的水通常称为( )。
【单选题】Why had Jo secretly gone into town?
A.
Because she wanted to sell her hair.
B.
Because she wanted to buy a present for her mother.
C.
Because she wanted to find a job.
D.
Because she wanted to publish her stories.
【单选题】What was NOT the reason for Jo to take her first job?
A.
She had four months free before she went to college,
B.
She needed the money.
C.
She was not qualified for anything.
D.
Her working place was near her home.
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