With the support from Geron, what have researcher Keirstead and his colleagues done?
They have developed a protocol that encourages hES cells to differentiate into cells called oligodendrocyte precursors(前体细胞）which can produce the protective myelin sheath that allows neurons to send signals along their axons. This sheath is often lost during spinal cord injuries.
举一反三
- In an individual culture, emplyee’s value is measured mainly by . A: Their personal accomplishements B: Thier respect to other colleagues C: What they have done in a team D: Whether they are loyal to their colleagues
- SECTION A CONVERSATIONSIn this section you will hear eight statements. At the end of each statement you will be given 10 seconds to answer the question. What can we infer from the statement A: To stay with Jack is too difficult. B: To stay with his colleagues is difficult. C: To stay with his colleagues is not difficult. D: His colleagues are not on good terms with him.
- In the eyes of the author， what happens to a scholar who shares his ideas with his colleagues?
- What makes the man have trouble sleeping at night(). A: The pressure from his work. B: The noise from his neighbors. C: His divorce. D: His suit.
- what did his chinese colleagues think of the key-slot incident
内容
- 0
There was nothing _____ could be done now; his dog would have to die slowly and painfully. A: which B: that C: who D: what
- 1
Anyone in his position ______ the same. A: would do B: would have done C: will do D: will have done
- 2
________ the scandal among his colleagues, Mr. Williams would have been promoted to the position as director.
- 3
It is not () you have said but what you have done () made us very disappointed. A: that; what B: what; what C: what; that D: that; that
- 4
____ (take) his advice, you would have done well.