(What, what)all the inventions have in common is What, what they have succeeded.
AI搜題
NEW
搜題
第1題
What does the author think important for bioethics activities？
A.Social status of those involved.
B.The academic quality.
C.Governmental regulations.
D.Consensus within the fields.
第2題
Part A
Write a letter of invitation to your friend Jane, telling her about:
1. what the invitation is and the time and the place of the invitation
2. the pleasure of seeing her on the occasion
3. a reply expected when it seems necessary
You should write approximately 100 words. Do not sign your own name at the end of your letter. Use "Wang Lin" instead. You do not need to write the address.
第3題
聽力原文： Many scientists had very bad proficiency records in their school days. Famous inventor Thomas Edison, for instance, did so poorly in his first years of school that his teacher warned his parents that he'd never be a success at anything. Similarly, Henry Ford, the father of the auto-industry, had trouble in school with both reading and writing. But perhaps the best example is Albert Einstein, whose parents and teachers suspected that he was retarded because he responded to questions so slowly and in a stuttering voice. Einstein's high school record was poor in everything but math, and he failed his college entrance exams the first time. Even out of school the man had trouble holding a job-until he announced the theory of relativity.
What did Thomas Edison, Henry Ford and Albert Einstein have in common when they were studying at schools？
A．They were top students.
B．They went to best public schools.
C．They were not very good students.
D．Their teachers thought they would be very successful.
第5題
A.inv(A)* inv(B)*C
B.inv(B)* inv(B)*C
C.inv(A)*C* inv(B)
D.inv(B)*C* inv(A)
第6題
A.inv(A)* inv(B)*C
B.inv(B)* inv(B)*C
C.inv(A)*C* inv(B)
D.inv(B)*C* inv(A)
第7題
方程組的解可以通過命令（）獲得。A.inv([4,2,-1;3,-1,2;12,3,0])*[2,20,8]
B.inv([4,2,-1;3,-1,2;12,3,0])*[2,20,8]'
C.inv([4,2,-1;3,-1,2;12,3,0])\[2,20,8]
D.[2,20,8]*inv([4,2,-1;3,-1,2;12,3,0])
