更多"What is special about the Polish wa"的相关试题:
[单项选择]What can there be said about the way the man teaches the woman
A. He seems to be in a hurry to leave.
B. He seems to be curious about her.
C. He seems to be happy to assist her.
D. He seems to be unfamiliar with the town.
[单项选择]What was ( ) about the way Mr. El's students and Miss Joan reacted to the blue jeans
A. case
B. the case
C. same
D. the same
[单项选择]What did they talk about on the way home
[单项选择]What can be inferred about the French way of communication
A. It could send speech sounds.
B. It could send complicated messages.
C. It could be understood by any French person.
D. It could carry messages over a long distance in just a few seconds.
[单项选择]In what way does her brother help her
A. He is a strong supporter for her.
B. He never upsets her.
C. He can work long hours.
[单项选择]What does Mr.Hunt say about the best way to beat stress
A. Keeping busy and productive is the best way.
B. Spending more time with friends is the best way.
C. Trying all the things that can help one to relax.
[单项选择]
In what way can caffeine benefit one’s health according to the speaker
A. It improves one’s brain function.
B. It increases one’s blood flow.
C. It cleans the water of the body’s ceils.
D. It keeps one away from depression.
[填空题]In what way does Bolivia increase barriers to doing business
[单项选择]In what way are open prisons different from closed prisons()
A. Some of their prisoners are allowed to study or work outside prisons.
B. Most of their prisoners are expected to work.
C. Their prisoners are often sent to special centers for skill training.
D. Their prisoners are allowed freedom to visit their families.
[单项选择]In what way do Columbian students differ from Japanese students()
A. Japanese students study much harder than Columbian students.
B. Columbian students score higher than Japanese students in maths.
C. Columbian students are more optimistic about their maths skills.
D. Japanese students have better conditions for study.
[单项选择]In what way can aspirin help heart surgery patients according to the doctors()
A. It keeps blood vessels from being blocked.
B. It speeds up their recovery after surgery.
C. It increases the blood flow to the heart.
D. It adjusts their blood pressure.
[简答题] Scientists have learned more about the way cancer spreads from one place in the body to another. Once it spreads, it gets more difficult to treat. Cancer is a disease of uncontrolled cell growth. Traditional thinking is that cells simply break off the main cancer, travel through the blood and grow in other organs.
But the new findings suggest there is more to this process. Researchers found that cells from the main tumor send out messengers. These prepare the new organ for a secondary tumor (瘤). It works this way. The primary tumor releases proteins called growth factors into the blood. They signal cells at the target organ to produce a sticky protein, called fibronectin. It attaches to the surface of bone marrow (骨髓) cells. The result is a kind of landing area for cancer to arrive and grow into a secondary tumor.
The bone marrow cells help make vessels for blood to pass through and feed the cancer cells. The researchers believe that without the bone marrow cells, the tum