题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

“A heavy ion (离子) cancer treatment system developed by Chinese researchers will soon be put into 1. (operate) in northwest China’s Gansu Province,” researchers said.

The system will be used in a hospital in Lanzhou, capital of Gansu, 2. is mainly devoted to treating cancer patients with the technology of heavy-ion accelerators.

Cancer radiation treatments 3. (employ) heavy-ion accelerators can attack 4. target with high-energy electrons (电子) to kill cancer cells.

Compared to traditional therapy (治疗) such as radiation, heavy ion treatment 5. (consider) to have more balanced properties with 6. (little) radiation on healthy cells. The treatment period is shorter, 7. the therapy could more 8. (effect) control cancer cells, according to Wang Xiaohu, deputy director of the Gansu Provincial Cancer Hospital.

Researchers with the Institute of Modern Physics under the Chinese Academy of Sciences started basic research 9. the technology in 1993 and developed the accelerators in 2015.

A report published by the National Cancer Center in 2017 showed that China has nearly 25 percent of the world’s new cancer cases, with 10,000 cancer patients 10. (add) per day. Every year, there are two million cancer-induced deaths. Lung, breast and stomach cancers are the most common types.