Many forms of cancer can be cured if detected early.

单选题

Many forms of cancer can be cured if detected early.

答案解析

单选题

Together these inventions hugely reduced the cost of blasting rock, drilling tunnels, building canals and many other forms of____work.

答案解析

单选题

There are many forms of online advertising.______is a small rectangular object on a Web page that displays a stationary or moving graphic and includes a hyperlink to the advertisers Web site.

答案解析

材料题

vaccine uses the patients own immune system.It is made specifically for each patient and is injected into the arm or leg.It stimulates（刺激）the bodys immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer.It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.The vaccine cured all the participants in the trial.

答案解析