Birth defects affect about 3% babies born in the United States each year. Which of the following birth defects is the most common one?
A. Spina Bifida
B. Club foot
C.Anencephaly
D.Cleft lip/palate
E.Down Syndrome
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Which of the following cannot be explained by abnormal recombination?
A.point mutations
B.unbalanced translocations
C.inversions
D. deletions
Which of the following is not considered to be a complex disorder?
A.Cancer
B.Alzheimer’s disease
C.Parkinson’s disease
D.Huntington’s disease
E.Type-2 diabetes
Which is prion disease (朊蛋白病):
A.Turner syndrome
B.LHON
C.Mad cow disease
D.DMD
E.Spina Bifida
局域网中有台计算机名为“wx”,若想查找该计算机,以下对的是
A. \\wx
B. \wx
C. //wx
D. /wx
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