预算级次一般分为()级。
A.中央级
B.省级
C.市级
D.共享级
参考答案:A, B, D
交界性大疱性表皮松解症的基因定位于()。
A.3q21-q22
B.2q33-q35
C.1q21
D.1q25-1q32
E.Xq22.3
()refers to the tendency of a body of the ship to return to its original position after it is displaced therefrom.
A.Stability
B.Responsibility
C.Liability
D.Visibility