According to the author,what should the government do about genetic test?
A.Inform. the public of the risk of it.
B.Legitimate the access to it.
C.Control the access to it.
D.Intervene when necessary.
设A为3阶可逆矩阵,将A的第2行加到第l行得8,再将B的第l列的(-1)倍加
In the author’s opinion,the real situation of racial equality in America is_______.
A.pessimistic
B.optimistic
C.desperate
D.hopeful
____
A.payments
B.fund
C.capital
D.allowance
A.off
B.on
C.down
D.forward