A. B. C. D. 填空题,谢谢

A. B. C. D. 填空题,谢谢 (a-b-c+d)(a-b+c-d)=[(a-b)- ( )][( )+(c-d)]填空题 填空题要过程已知数据a,a,b,c,d,b,c,c,且a 填空题：(a-b-c-d)(a+b-c+d)=[( )+( )][( )-( )] 选择填空,选择A,B,C,D ___bad weather it is today!A、How B、What a C、How a D、What填空详解谢谢 5数字数学填空题若a>b,c>d,则a(c-d)____b(c-d) She __very __.A、is singing ;good B、sings;good C、singing ;well D、sings,well 填空详解谢谢 There are 56__in China .A、people B、peoples C、the people D、people's填空 详解 谢谢 Today is my grandpa's___birthday.A.the eightieth B.eightieth C.eigthy D.eigties填空详解谢谢 ___do you play basketball? A、How soon B、How long C、How D、How often 填空详解谢谢 若a：b=b：c=c：d=1：2,则a：d=____（填空题） 一道填空题：It's ( ) “F” A.a B.an C./(不填) D.the 需保证答对至少6题谢谢,答案用A、B、C、D写出谢谢 需保证答对至少6题谢谢,答案用A、B、C、D写出谢谢 填空是式子:a-b-c+d=a-( )=d-()=c-() （a+b+c+d）乘（a+b+c+d）怎么做谢谢了, 选择填空.谢谢了!一共十题.① there are a lut of () here. A public B sign c public sign D public signs②the park keeper () a sign on the glass. A points B point to C points to D to③What () this sign () ? A does,mean B is ,