扁桃体最常见的恶性肿瘤为（）。
A.腺癌
B.淋巴肉瘤
C.鳞癌
D.网织细胞肉瘤
E.血管内皮瘤
参考答案：C
My sister _____________ a new skirt, but I _____________.[ ]
A. has; don't
B. don't have; have
C. has; am not
D. don't has; have
如果汽车自30MPH增至90MPH，则制动时所产生之热量增至（）倍
A.2倍
B.3倍
C.6倍
D.9倍
