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造型式立体花坛的高度应与花坛的面积呈比例，一般高度为花坛直径的（ ） A1/3—1/2 B1/6—1/4 C1/4—1/3 D1/5—1/4
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【单选题】听力原文： Smoking is even more dangerous than previously believed, according to a major review of medical data by the World Health Organization's cancer agency. The International Agency for Research on Ca...
A.
They published scientific evidence to determine second hand smoke as a cause of cancer.
B.
They denied the suspicion that second hand smoke may cause cancer.
C.
They discovered all the causes of cancer.
D.
They agreed that moderate smoke won't cause cancer.
【单选题】According to the passage, an unlabeled use of a drug is any use which______.
A.
has been reviewed by the FDA and specifically rejected
B.
has medical value but has not yet been approved by FDA for inclusion as a labeled use
C.
is authorized by the label as approved by the FDA on the basis of scientific studies
D.
is made in experiments designed to determine whether a drug is medically beneficial
【简答题】温度是影响微生物生长的重要原因之一,每种微生物都有温度三基点,温度温度三基点是指哪三个?
【简答题】温度是影响微生物生长的重要原因之一,每种微生物都有温度三基点,温度温度三基点是指哪三个?
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