新制的蒸馏水不宜用于养金鱼,是因为蒸馏水中含有较少的[ ]
A.氧元素
B.氧原子
C.氧分子
D.氢元素
答案:C
男性,30岁,乏力、咳嗽1月余,伴低热、盗汗、痰中带血1周。X线胸片示:右肺上叶尖段炎症,伴有空洞形成。最可能的诊断是
A.肺囊肿继发感染
B.浸润型肺结核
C.慢性肺脓肿
D.癌性空洞伴感染
E.金黄色葡萄球菌肺炎
—What wine shall we prepare for the dinner?
—You’d better think about it twice, because some guests are ________ about their wine.
A.special
B.particular
C.especial
D.excited