问题
选择题
| 用“二分法”可求近似解，对于精确度ε说法正确的是 |
A．ε越大，零点的精确度越高 B．ε越大，零点的精确度越低 C．重复计算次数就是ε D．重复计算次数与ε无关 |
答案
答案：B
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| 用“二分法”可求近似解，对于精确度ε说法正确的是 |
A．ε越大，零点的精确度越高 B．ε越大，零点的精确度越低 C．重复计算次数就是ε D．重复计算次数与ε无关 |
答案：B
| 完形填空。 | |||
| Some people just can not decide what to do all by themselves. They often __1__ the advice (建议) of their friends. But they never do as their friends have said. My friend Jack is __2__ person, and he is always asking me for help. I try to help him as well as I can, but he never listens to me. Yesterday I __3__ a new way to make him take my advice. It worked. "Look," he said __4__ me a letter. "What do you think I should do? " The letter told him that there was a good job for him. It seemed to be a good chance (机会) for a young artist. __6__ , and he __7__ to travel and visit many interesting places. " __8__ this, Rose?" he asked, " If I take the job, I will have to stay in Australia for two years. I may stay a bit longer. But it would be a wonderful time for me. Should I go, Rose?" "Don't go," I told him, "You'll suffer (受苦) a lot there." "Don't go?" he __9__ surprised at my answer. As you have probably known, Jack went. I wonder (想知道) __10__ he found that I really wanted him to take the job. | |||
| ( ) 1. A. ask for ( ) 2. A. such kind ( ) 3. A. thought ( ) 4. A. showing ( ) 5. A. will send ( ) 6. A. good ( ) 7. A. could be able ( ) 8. A. What do you like ( ) 9. A. asked ( ) 10. A. why | B. receive B. this kind B. tried B. showed B. send B. well B. could B. How do you like B. spoke B. whether | C. take C. such a C. gave C. to show C. would send C. nice C. would be able C. How do you think of C. said C. that | D. give D. a such D. wanted D. shown D. sends D. enough D. would be going D. What do you think D. looked D. when |