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【单选题】
Principal: He's going to have to go to a special school. What is the best explanation for the underlined euphemism (委婉语)?
A.
a school for highly-intelt children
B.
a school for the low-IQ children
C.
a school for the children who have special abilities
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【单选题】对于A4++B2+= A3++B3+，若A、B两电对的标准电极电势分别为a、b，则滴定反应的条件常数的对数(lgK’)为 ( )
A.
(a-b)/0.059
B.
2(a-b)/0.059
C.
(a+b)/0.059
D.
不明确
【单选题】如下程序段的功能是判断一个4位自然数个位和十位数字是否相同,在划线处填写表达式。 int num; scanf (“%d”,&num); if (num>=1000 && num<10000) if (______________) printf ( “该4位自然数个位和十位数字相同\n”); else printf ( “该4位自然数个位和十位数字不同\n”);
A.
num/10%10==num/100%10
B.
num%10 ==num/10%10
C.
num/100%10==num%10
D.
num/1000==num%10
【单选题】Multiple copies of an antibiotic resistance gene was found on the chromosome isolated from bacteria X. What is the most likely explanation for this occurrence?
A.
Multiple copies of an antibiotic resistance gene was found on the chromosome isolated from bacteria X. What is the most likely explanation for this occurrence?
B.
the bacteria mated with numerous bacteria containing plasmids with the antibiotic resistance gene
C.
the bacteria contained the antibiotic resistance gene on a transposon that underwent replicative transposition
D.
the bacteria contained multiple copies of the antibiotic resistance gene from recombination
【多选题】进入新世纪新阶段，我国进入发展关键期、改革攻坚期和矛盾凸显期，经济社会发展呈现出一系列新的阶段性特征，主要是（ ）
A.
经济实力显著增强，同时生产力水平总体上还不高
B.
社会主义市场经济初步建立，同时影响发展的体制机制障碍依然存在
C.
协调发展取得显著成绩，同时农业基础薄弱、农村发展滞后的局面尚未改变
D.
对外开放日益扩大，同时面临的国际竞争日趋激烈
相关题目：
【单选题】对于A4++B2+= A3++B3+，若A、B两电对的标准电极电势分别为a、b，则滴定反应的条件常数的对数(lgK’)为 ( )
A.
(a-b)/0.059
B.
2(a-b)/0.059
C.
(a+b)/0.059
D.
不明确
【单选题】如下程序段的功能是判断一个4位自然数个位和十位数字是否相同,在划线处填写表达式。 int num; scanf (“%d”,&num); if (num>=1000 && num<10000) if (______________) printf ( “该4位自然数个位和十位数字相同\n”); else printf ( “该4位自然数个位和十位数字不同\n”);
A.
num/10%10==num/100%10
B.
num%10 ==num/10%10
C.
num/100%10==num%10
D.
num/1000==num%10
【单选题】Multiple copies of an antibiotic resistance gene was found on the chromosome isolated from bacteria X. What is the most likely explanation for this occurrence?
A.
Multiple copies of an antibiotic resistance gene was found on the chromosome isolated from bacteria X. What is the most likely explanation for this occurrence?
B.
the bacteria mated with numerous bacteria containing plasmids with the antibiotic resistance gene
C.
the bacteria contained the antibiotic resistance gene on a transposon that underwent replicative transposition
D.
the bacteria contained multiple copies of the antibiotic resistance gene from recombination
【多选题】进入新世纪新阶段，我国进入发展关键期、改革攻坚期和矛盾凸显期，经济社会发展呈现出一系列新的阶段性特征，主要是（ ）
A.
经济实力显著增强，同时生产力水平总体上还不高
B.
社会主义市场经济初步建立，同时影响发展的体制机制障碍依然存在
C.
协调发展取得显著成绩，同时农业基础薄弱、农村发展滞后的局面尚未改变
D.
对外开放日益扩大，同时面临的国际竞争日趋激烈
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