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【单选题】
在实验室中进行了两类细菌竞争食物的实验。在两类细菌的混合培养液中测定了第Ⅰ类细菌后一代（即Z t+1 ）所占总数的百分数与前一代（即Z t ）所占百分数之间的关系。在下图中，实线表示观测到的Z t+1 和Z t 之间的关系，虚线表示Z t+1 ＝Z t 时的情况。从长远看，第Ⅰ类和第Ⅱ类细菌将会发生什么情况？（）
A.
第Ⅰ类细菌与第Ⅱ类细菌共存
B.
两类细菌共同增长
C.
第Ⅰ类细菌把第Ⅱ类细菌从混合培养液中排除掉
D.
第Ⅱ类细菌把第Ⅰ类细菌从混合培养液中排除掉
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参考答案：
举一反三
【单选题】假定k是一个double类型的变量,则关于变量p的正确定义语句为( )。
A.
double p=&k;
B.
int *p=&k;
C.
double &p=*k;
D.
char *p=”Thank you!”;
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【单选题】The two vessels underway may collide with______ if they don't take immediate measures.
A.
one to another
B.
one the other
C.
each the other
D.
each other
查看完整题目与答案
【多选题】李悝《法经》六篇，列于前面的两篇是（）
A.
具法
B.
杂法
C.
盗法
D.
贼法
E.
囚法
查看完整题目与答案
【多选题】在数字上日本人最忌讳以下哪些数字( )。
A.
3
B.
4
C.
6
D.
9
E.
7
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【单选题】听力原文：W：Did you hear that Greg got a job in his uncle, slaw office? You know, he was a student on the low end in my class. M：Like they say, it's who you know that counts． Q：What does the man mean? (17)
A.
He knows someone who can get the woman a job.
B.
Greg and his uncle don't like their jobs.
C.
Greg got the job only because of his uncle.
D.
He doesn't know the woman's uncle.
查看完整题目与答案
【多选题】李悝的《法经》有六篇,列于前面的两篇是( )。
A.
《具法》
B.
《杂法》
C.
《盗法》
D.
《贼法》
查看完整题目与答案
【多选题】日本人忌讳以下哪些数字?
A.
4
B.
7
C.
13
D.
9
查看完整题目与答案
【单选题】— Did you telephone Uncle Sam our plan for the Christmas holidays on his farm? — Yes, he was happy about our arrival, and he eagerly asked when _____. [     ]
A.
had we arrived
B.
we had arrived
C.
were we arriving
D.
we were arriving
查看完整题目与答案
【单选题】假定A为一个类,则对于语句 A a,b(2),*p;当语句正确执行时,自动调用构造函数的次数为()次。
A.
2
B.
3
C.
4
D.
5
查看完整题目与答案
【简答题】After the disastrous failure of Prince Charles Edward Stuart to set up his kingdom in Scotland, more than one great Highland family had fled oversea to Virginia, and for a hundred years had maintained...
查看完整题目与答案
相关题目：
【单选题】假定k是一个double类型的变量,则关于变量p的正确定义语句为( )。
A.
double p=&k;
B.
int *p=&k;
C.
double &p=*k;
D.
char *p=”Thank you!”;
查看完整题目与答案
【单选题】The two vessels underway may collide with______ if they don't take immediate measures.
A.
one to another
B.
one the other
C.
each the other
D.
each other
查看完整题目与答案
【多选题】李悝《法经》六篇，列于前面的两篇是（）
A.
具法
B.
杂法
C.
盗法
D.
贼法
E.
囚法
查看完整题目与答案
【多选题】在数字上日本人最忌讳以下哪些数字( )。
A.
3
B.
4
C.
6
D.
9
E.
7
查看完整题目与答案
【单选题】听力原文：W：Did you hear that Greg got a job in his uncle, slaw office? You know, he was a student on the low end in my class. M：Like they say, it's who you know that counts． Q：What does the man mean? (17)
A.
He knows someone who can get the woman a job.
B.
Greg and his uncle don't like their jobs.
C.
Greg got the job only because of his uncle.
D.
He doesn't know the woman's uncle.
查看完整题目与答案
【多选题】李悝的《法经》有六篇,列于前面的两篇是( )。
A.
《具法》
B.
《杂法》
C.
《盗法》
D.
《贼法》
查看完整题目与答案
【多选题】日本人忌讳以下哪些数字?
A.
4
B.
7
C.
13
D.
9
查看完整题目与答案
【单选题】— Did you telephone Uncle Sam our plan for the Christmas holidays on his farm? — Yes, he was happy about our arrival, and he eagerly asked when _____. [     ]
A.
had we arrived
B.
we had arrived
C.
were we arriving
D.
we were arriving
查看完整题目与答案
【单选题】假定A为一个类,则对于语句 A a,b(2),*p;当语句正确执行时,自动调用构造函数的次数为()次。
A.
2
B.
3
C.
4
D.
5
查看完整题目与答案
【简答题】After the disastrous failure of Prince Charles Edward Stuart to set up his kingdom in Scotland, more than one great Highland family had fled oversea to Virginia, and for a hundred years had maintained...
查看完整题目与答案
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