⑴ ____
⑵ ____
⑶ ____
A.—Who's that boy?
—He's my brother.
B.—Is he your father?
—Yes,he is.
C.—Who's that woman?
—She's my mother.
找出下列各组单词中划线部分的读音与其余三个不同的一项。
①____A. map B. name C. black D. cat
②____A. desk B. pen C. he D. hen
③____A. book B. rooster C. goose D. schoolbag
④____A. tea B. head C. peach D. teacher
⑤____A. this B. that C. three D. there
我国城市经济体制改革的中心环节是
已知圆系方程(x﹣m)2+(y﹣2m)2=5(m∈R,m为参数),这些圆的公切线方程为____
1879年,某项科技新成果发明的消息传到英国,伦敦证券交易所的煤气股票价格随之狂跌。引起股票狂跌的科技新成果是( )