-- Please say something about Zheng He.
-- Oh! He is the Ming dynasty explorer of all the Chinese are proud.
A:who
B:whom
C:whose
找出每组单词画线部分读音和其余三个不同的一个。
①____ A. run B. know C. beginning D. thank
②____ A. happy B. phrase C. captain D. pencil
③____ A. cake B. back C. cross D. cinema
④____ A. home B. house C. hour D. whole
⑤____ A. climb B. club C. lab D. bicycle
A=3×3×5,B=3×3×7,A、B的最大公因数是____,最小公倍数是____.