鉴别大量腹水和巨大卵巢囊性肿块的确切检查是()
A.移动性浊音阳性
B.移动性浊音阴性
C.B型超声检查
D.腹部穿刺
E.腹部两侧鼓音
参考答案:C
The DiaoYu Island have been part of China’s territory since ancient times, __________as important fishing grounds of Taiwan.
A.served
B.serving
C.to serve
D.having served
人民警察义务,是指人民警察在行使权力、履行职责过程中必须作出一定行为的约束。 ( )