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【单选题】
乳酸菌数检验时,若所有稀释度的平板菌落数均小于30CFU,则应A.
按稀释度最低的平均菌落数乘以稀释倍数计算
B.
按稀释度最高的平均菌落数乘以稀释倍数计算
C.
以小于1乘以最低稀释倍数计算
D.
按最接近30个菌落的稀释度乘以稀释倍数计算
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【简答题】Our president made a(n) ____ speech at the opening ceremony of the sports meeting which encouraged the sportsmen greatly．
【单选题】关于致密斑的描述,下列哪项是正确的?
A.
位于近球小管起始部
B.
是Na+含量变化的感受器
C.
是肾素分泌细胞
D.
可调节抗利尿激素的释放
E.
是晶体渗透压感受器
【单选题】As is known, it was Hu Jintao, _______ president of our nation, who gave ________ lecture at the ceremony of National Day
A.
the; a
B.
the ; /
C.
a; the
D.
/; a
【单选题】It was in that small village ______ our president was born.
A.
which
B.
when
C.
that
D.
as
【单选题】Do you still remember ______ to our president when you visited our school last term?
A.
to be introduced
B.
being introduced
C.
introduced
D.
to have been introduced
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