①原式=(1+3-5)2
=-2;
②原式=(3-2)+(2-3)-(2-1)
=3-2+2-3-2+1
=-22+3.
Your little sister looks cute in the picture. Thanks for _____ me a photo of _____.[ ]
A. bringing; she
B. bringing; her
C. bring; her
D. bring; hers
可能与痛风发生有关的酶是______。
A.PRPP合成酶B.核糖核苷酸还原酶C.硫氧化还原蛋白还原酶D.氨基甲酰磷酸合成酶ⅡE.黄嘌呤氧化酶