K11_Kiểm tra thường xuyên_Lần 1_HK1
Quiz
•
Computers
•
11th Grade
•
Hard
Nguyen Thi Huynh Kieu
Used 13+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Để nhập giá trị cho 2 biến x và y ta dùng lệnh:
cout >> x, y ;
cout >> x >> y ;
cin >> x, y ;
cin >> x >> y ;
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Để đưa ra màn hình giá trị của biến a kiểu nguyên và biến b kiểu thực ta dùng lệnh:
cout << “ a, b” ;
cin >> “a, b” ;
cout << a << b ;
cin >> a, b ;
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong C++, cho đoạn chương trình:
{
int a = 100;
int b = 30;
int x = a / b ;
cout << x;
}
Cho biết kết quả sau khi thực hiện lệnh :
Báo lỗi do gán sai kiểu dữ liệu
10
3
1
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong C++, hàm cho giá trị bằng căn bậc 2 của x là :
sqrt(x);
exp(x);
abs(x);
pow(x,y);
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong C++, cho đoạn chương trình:
{
int a = 5;
int b = 2;
double x = a * 1.0 / b ;
cout << x;
}
Cho biết kết quả sau khi thực hiện lệnh :
2
Báo lỗi do gán sai kiểu dữ liệu
2.5
0
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong C++, phép toán % với số nguyên có tác dụng gì ?
Chia lấy phần nguyên
Làm tròn số
Chia lấy phần dư
Thực hiện phép chia
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong C++, để thực hiện gán giá trị 10 cho biến X. Phép gán nào sau đây là đúng?
X = 10;
X == 10;
X :== 10;
X : = 10;
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