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【单选题】
下列哪项不是卫生部规定的卫生标准A.
每lml饮用水细菌总数不得超过100个
B.
每100ml汽水大肠菌群不得超过5个
C.
每1000ml饮用水大肠菌群不得超过3个
D.
每lml饮料细菌总数不得超过100个
E.
每l00ml果汁大肠菌群不得超过100个
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举一反三
【单选题】The rule of 70 states that:
A.
the average score on standardized tests is normally distributed with a mean of 70 and a standard deviation of 10.
B.
everyone should retire by age 70.
C.
the number of years for a variable to double equals 70 divided by its annual growth rate.
D.
Social Security benefits should increase when people reach 70.
【单选题】The rule of 70 tells us that:
A.
it takes most countries 70 years to increase real GDP growth.
B.
the number of years it takes for a variable to double is equal to 70 divided by the annual growth rate of the variable.
C.
the number of years for real GDP per capita to double is the current growth rate plus 70.
D.
only 70 countries can have real GDP growth at any given time.
【单选题】The Rule of 70 is used to
A.
estimate how much of an economy's growth rate is due to increases in capital per hour of labor
B.
calculate the standard of living
C.
calculate the economy's growth rate
D.
estimate how long it will take the level of any variable to double
【单选题】下列业务中，通常不能在发出商品时确认收入的是()。
A.
附有销售退回条件销售的商品，不能够合理估计退货的可能性
B.
具有融资性质的分期收款销售商品
C.
预收货款方式销售商品
D.
认定为经营租赁的售后租回，且该交易是按照公允价值达成的
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