【判断题】已知反应2A→P,A的半衰期与其初始浓度成正比,此反应为零级。
【判断题】正交实验法中,实验数据的统计分析在数理统计中称为概率分析。( )
【简答题】Other tests have shown that laughter appears to be able to reduce the effect of pain on the body.
【单选题】—Nowadays the doctors are trying their best to reduce the people’s fear they would be affected by the present disease called “Bird Flu (禽流感)”.
【单选题】The phrase 'scale down 'in Para. 3 probably means to ______ .
A.
reduce the proportion of the size properly
B.
reduce according to the fixed pattern
C.
make it diminish infinitely
D.
cut down the time properly
【单选题】The Agricultural Adjustment Act encouraged American farmers to____
A.
reduce their scale of production.
B.
make full use of their land.
C.
adjust the prices of their farm products.
D.
be self-sufficient in agricultural production.