亚当·斯密提出了“比较优势学说”,后由大卫·李嘉图进一步发展。
参考答案:错
It was only with the help of special device ______ the information.
A.did they get
B.that they got
C.will they get
D.that they get
运行XY.PRG程序后,将在屏幕显示如下乘法表:1) 12) 2 43) 3 6 94) 4 8 12 165) 5 10 15 20 256) 6 12 18 24 30 367) 7 14 21 28 35 42 498) 8 16 24 32 40 48 56 649) 9 18 27 36 45 54 63 72 81 请对下面的程序填空: ***计算乘法表XY.PRG*** SET TALK OFF CLEAR FOR J=1 TO 9 STR(J,2)+’)’ FOR K= (10) (11) ENDFOR ENDFOR RETURN