12. ( ) The neutral mutation rate is known ________ widely along human chromosomes, ________ to mutational hot and cold regions.
(A) to be varying； to lead
(B) varying； led
(C) to have varied； being led
(D) to vary； leading

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統計： A(6), B(8), C(12), D(89), E(0) #2930336

詳解 (共 3 筆)

#5497095
be known to V / for ...
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#5822234
The neutral mutation...
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#6455620
(A) to be varying；t...
(共 430 字，隱藏中）
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