【单选题】
Where will Jessica and her friends visit during the weekend?
A.
The Temple of Heaven.
B.
The Tiananmen Square.
C.
The Olympic Park.

【单选题】How does Zachary's friend talk with his friends?
A.
He chats with them online every day.
B.
He goes out and meets them.
C.
He seldom talks with his friends.
【单选题】For vectors of size n, the optimal and worst-case time complexity for merge sorting is: 对于规模为n的向量，归并排序的最优、最坏时间复杂度分别为：
A.
\$\Theta(n),\Theta(nlog_2n)\$
B.
\$\Theta(nlog_2n),\Theta(nlog_2n)\$
C.
\$\Theta(nlog_2n),\Theta(n^2)\$
D.
\$\Theta(n),\Theta(n^2)\$
【单选题】Drugs can slow down the ________ of the disease.
A.
foundation
B.
program
C.
profile
D.
progression

【单选题】How does Zachary's friend talk with his friends?
A.
He chats with them online every day.
B.
He goes out and meets them.
C.
He seldom talks with his friends.
【单选题】For vectors of size n, the optimal and worst-case time complexity for merge sorting is: 对于规模为n的向量，归并排序的最优、最坏时间复杂度分别为：
A.
\$\Theta(n),\Theta(nlog_2n)\$
B.
\$\Theta(nlog_2n),\Theta(nlog_2n)\$
C.
\$\Theta(nlog_2n),\Theta(n^2)\$
D.
\$\Theta(n),\Theta(n^2)\$
【单选题】Drugs can slow down the ________ of the disease.
A.
foundation
B.
program
C.
profile
D.
progression