⑴____ A. young B. tall C. old
⑵____ A. small B. big C. than
⑶____ A. meter B. hall C. short
⑷____ A. me B. you C. him
⑸____ A. long B. taller C. older
小明在显微镜的视野中看到一个“d”字,请问透明纸上写的是( )
已知等差数列an满足a1+a2+a3+⋯+a101=0则有( )