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【单选题】
为什么进行回收电泳和切胶时,要保证新制及干净?
A.
因为实验本来就要求很高
B.
因为有洁癖
C.
因为用过的电泳液或者切胶台面上可能会有前面的实验残留的未知DNA
D.
因为灰尘会影响实验结果
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参考答案：
举一反三
【单选题】9 Questions 9 to 12 are based on the conversation you have just heard.
A.
The designing of a new restaurant.
B.
The psychology of doing business.
C.
The winner and loser in the market.
D.
The slow business in their restaurant.
查看完整题目与答案
【单选题】12 Questions 9 to 12 are based on the following conversation
A.
He needs to go and study hard.
B.
He needs to keep up with others.
C.
He needs to catch the last bus.
D.
He needs to go and finish his work.
查看完整题目与答案
【简答题】有数组 int array[10]={2,3,6,8,1,7,9,0,-2,43}; int num1=5; int num2=3; int num3=array[num1]+array[num2-1]; num3的值等于______。
查看完整题目与答案
【单选题】data=np.array([1.2,3.0,1.6]) data.floor(a) 该程序运行的结果是?
A.
array([2,3,2])
B.
array([1,3,1])
C.
array([2,3,1])
D.
array([1.2,3.0,1.6])
查看完整题目与答案
【单选题】9 Questions 9 to 12 are based on the conversation you have just heard.
A.
Whether zoos are good for animals or not.
B.
Whether they should go to the zoo this Saturday.
C.
Whether wild animals should be rescued or not.
D.
Whether a polar bear should live in California.
查看完整题目与答案
【单选题】下列为对象添加属性的方式正确的是( )。
A.
对象->属性
B.
对象.属性
C.
对象=>属性
D.
属性[对象]
查看完整题目与答案
【单选题】Questions 9 to 12 are based on the conversation you have just heard.
A.
Dating(约会) the woman.
B.
Looking for an apartment.
C.
Decorating(装修) his apartment.
D.
Moving pieces of his furniture.
查看完整题目与答案
【单选题】Questions 9 to 12 are based on the conversation you have just heard.
A.
The woman's advisor.
B.
The woman's brother.
C.
The woman's boyfriend.
D.
The woman's boss.
查看完整题目与答案
【单选题】Assume an array is declared as follows. Which of the following statements correctly assigns the value 100 to each of the four array elements? int[] num = new int[4];
A.
for(x = 0; x < 3; x++) num[x]=100;
B.
for(x = 0; x < 4; x++) num[x]=100;
C.
for(x = 1; x < 4; x++) num[x]=100;
D.
for(x = 1; x < 5; x++) num[x]=100;
查看完整题目与答案
【单选题】Conversation Two 9 Questions 9 to 12 are based on the conversation you have just heard.
A.
His future plan.
B.
His life in the UK.
C.
The salary he is earning.
D.
The requirements for a good worker.
查看完整题目与答案
相关题目：
【单选题】9 Questions 9 to 12 are based on the conversation you have just heard.
A.
The designing of a new restaurant.
B.
The psychology of doing business.
C.
The winner and loser in the market.
D.
The slow business in their restaurant.
查看完整题目与答案
【单选题】12 Questions 9 to 12 are based on the following conversation
A.
He needs to go and study hard.
B.
He needs to keep up with others.
C.
He needs to catch the last bus.
D.
He needs to go and finish his work.
查看完整题目与答案
【简答题】有数组 int array[10]={2,3,6,8,1,7,9,0,-2,43}; int num1=5; int num2=3; int num3=array[num1]+array[num2-1]; num3的值等于______。
查看完整题目与答案
【单选题】data=np.array([1.2,3.0,1.6]) data.floor(a) 该程序运行的结果是?
A.
array([2,3,2])
B.
array([1,3,1])
C.
array([2,3,1])
D.
array([1.2,3.0,1.6])
查看完整题目与答案
【单选题】9 Questions 9 to 12 are based on the conversation you have just heard.
A.
Whether zoos are good for animals or not.
B.
Whether they should go to the zoo this Saturday.
C.
Whether wild animals should be rescued or not.
D.
Whether a polar bear should live in California.
查看完整题目与答案
【单选题】下列为对象添加属性的方式正确的是( )。
A.
对象->属性
B.
对象.属性
C.
对象=>属性
D.
属性[对象]
查看完整题目与答案
【单选题】Questions 9 to 12 are based on the conversation you have just heard.
A.
Dating(约会) the woman.
B.
Looking for an apartment.
C.
Decorating(装修) his apartment.
D.
Moving pieces of his furniture.
查看完整题目与答案
【单选题】Questions 9 to 12 are based on the conversation you have just heard.
A.
The woman's advisor.
B.
The woman's brother.
C.
The woman's boyfriend.
D.
The woman's boss.
查看完整题目与答案
【单选题】Assume an array is declared as follows. Which of the following statements correctly assigns the value 100 to each of the four array elements? int[] num = new int[4];
A.
for(x = 0; x < 3; x++) num[x]=100;
B.
for(x = 0; x < 4; x++) num[x]=100;
C.
for(x = 1; x < 4; x++) num[x]=100;
D.
for(x = 1; x < 5; x++) num[x]=100;
查看完整题目与答案
【单选题】Conversation Two 9 Questions 9 to 12 are based on the conversation you have just heard.
A.
His future plan.
B.
His life in the UK.
C.
The salary he is earning.
D.
The requirements for a good worker.
查看完整题目与答案
参考解析：
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