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【单选题】
生物技术的发展速度很快，已灭绝生物的“复生”将不再是神话。如果世界上最后一只野驴刚死亡，以下较易成为“复生”野驴的方法是A.
将野驴的体细胞取出，利用组织培养技术，经脱分化、再分化，培育成新个体
B.
取出野驴的体细胞的细胞核移植到驴的去核卵细胞中，再经胚胎移植孕育培养个体
C.
将野驴的体细胞两两融合，再经组织培养培育成新个体
D.
将野驴的基因导入家驴的受精卵中，培育成新个体
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举一反三
【单选题】Since American's rank in graduation rate dropped dramatically, ______.
A.
more poor and non-white students cannot enter college
B.
the enrollment rate of white students may increase
C.
the young may be less well educated than their fathers
D.
more money and effort will be put on higher education
【简答题】I know _______________ since graduation.
【单选题】_____ all that has been said, the tourists have been picking leaves.
A.
In spite
B.
Despite
C.
Even
D.
Even so
【单选题】MOV R0,#0x8000 MOV R2,#0x640 STR R2,[R0] MOV R1,#0x000003F0 SWPB R4,R1,[R0] 执行完以上汇编程序后,R4和[R0]的结果是多少
A.
R4=0x40 [R0]=0x06F0
B.
R4=0x3F0 [R0]=0x8000
C.
R4=0x40 [R0]=0x8000
D.
R4=0x3F0 [R0]=0x06F0
【单选题】After graduation, he was employed by a famous company and ____ there ever since.
A.
worked
B.
has worked
C.
had worked
D.
is working
【单选题】—Have you ____ been to our town before? —No, it’s the first time I ___ here.
A.
even, come
B.
even, have come
C.
ever, come
D.
ever, have come
【简答题】I know ____since graduation.
【单选题】Since the Great Depression，the United States government has protected farmers from damaging drops in grain prices．
A.
slight
B.
surprising
C.
sudden
D.
harmful
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