巨大卵巢囊肿与腹水的鉴别中,下列哪种检查方法是禁忌的
A.胃肠道造影
B.腹部X线平片
C.超声波检查
D.经腹壁穿刺囊肿内容物检查
E.测腹部移动性浊音
参考答案:D
下图各容器中盛有海水,铁在其中被腐蚀时由快到满的顺序是
A.③>②>④>①
B.②>①>③>④
C.④>②>③>①
D.④>②>①>③
Our teacher looked here and there on our playground________ looking for something.[ ]
A. even though
B. even if
C. as if
D. only if