- 首页
- 执业药师继续教育
答案:
-
1.(2drd, D: y=r,yL√3
-
2.(3) A= P(r)i @(y)j R(z)k
-
3.y r yT V y r
-
4.yl
-
5.x y z,=0dx d★★8.设求r y Z
-
6.C. df(r, y)drf(xy)d.D. d
-
7.2.设z=2f(xy),其中函数f可微则 A 2yf'(r, y)B.-2yf'(r,y)D
-
8.4.已知y(t) =f()* h() =f(r)h(t- r)d则f(-t)h(-tf(t) h(t)=f(3:)h(3t)=果请用y(t)表示
-
9.公式(∀x)[P(x)∧Q(x,A)→(∃y)[E(x,y)∨S(y)]]中,∀x的辖域为(),∃y的辖域为()A.P(x); R(x, y)B.P(x) ꓥ Q(x, A); R(x, y)C.P(x
-
10.9.数据逻辑关系:D(x,y,z)←-R(x,y Z)ANDS(x y,z) AND NOT T(x,y z)表达的是A、R-(S-TB、S—R—T