【简答题】下列程序段的输出结果是【 】。 include<iostream.h> void main() {int i=10,sum=0; do { sum=+sum+i; i=i-2; }while(i>=2); cout<<sum<<end1; }
【单选题】There is a new problem involved in the popularity of private cars_______ road conditions need to be improved.
【单选题】There is a new problem involved in the popularity of private cars __________ road conditions require __________.
B.
which...to be improved
【判断题】β-内酰胺类抗生素的抗菌机制是影响胞浆膜的通透性。
【单选题】炒菜时,如果锅里的油因过热而起火,应采取的最佳措施是( )