Food aid______ is not enough to ______ the problem _______ now.
A：only; solve; discussed
B：alone; solving; being discussed
C：merely; solving; being discussed
D：alone; solve; being discussed
____
罗布泊
张骞
栖息
和煦
干涸
吞噬
bì
sè
xié
luǒ
yíng yíng
tā
____护
萧____
威____
____露
清水____
崩____
例如x=﹣1时多项式x2+3x﹣5的值记为f（﹣1）=（﹣1）2+3×（﹣1）﹣5=﹣7，
已知g（x）=﹣2x2﹣3x+1，h（x）=ax3+2x2﹣x
甲羊的去核卵细胞与乙羊体细胞的细胞核“组装”成一个新的细胞，该细胞多次分裂后植入丙羊的子宫内发育，产下羊羔的毛色和性别分别与哪只羊保持一致( )
先观察算式的特点再填空．
4+8+16=16×2﹣4=28
4+8+16+32=32×2﹣4=60
4+8+16+32+64=64×2﹣4=124
4+8+16+32+…+256=____
a+2a+4a+8a+16a+…+1024a=____
