若一岩浆岩手标本，部分结晶颗粒粗大，部分结晶颗粒较小或不结晶，则可认为（）。
A.深成岩
B.浅成岩
C.喷出岩
D.沉积岩
参考答案：B
—_______ you have bought for me! —I got them in the biggest market.
A．What a big fish
B．How a big fish
C．What big fish.
D．How big fish
局麻药中加入肾上腺素的浓度宜为
A．1:20000～40000B．1:2000～4000C．1:200000～400000D．1:2000000～4000000E．1:200～400
