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【单选题】
听力原文：W: When was the last time you cleaned this apartment? M: When was the last time my mother came over? Q: What does the man mean? (17)A.
He hasn't had time to find another apartment.
B.
His mother cleaned his apartment every day.
C.
He hasn't cleaned the apartment since his mother came to see him.
D.
His mother was the last person to come over to his apartment.
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举一反三
【单选题】一连串 反应A→P→S , P 为目的产物,反应均为一级, k 1 = 1 min -1 , k 2 = 2 min -1 , 反应在全混流反应器中进行,最佳空时为( ) min 。
A.
0.5
B.
0.71
C.
0.68
D.
0.65
【简答题】内因论者更强调个体发展的[ ]和内部矛盾在心理发展中的作用,认为儿童的心理发展是[ ]的
【简答题】内因论者更强调个体发展的[ ]和[内部矛盾]在心理发展中的作用,认为儿童的心理发展是主动的
【简答题】一连串反应 A-P-S , P 为目的产物,反应均为一级, k 1 = 1min -1 , k 2 = 2min -1 ,在间歇式反应器中的最佳反应时间为 min 。如此反应在全混流反应器中进行,最佳空时为 min 。
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