年长儿十二指肠球部溃疡典型临床表现是()
A.餐后痛
B.饥饿痛或夜间痛
C.持续性疼痛,阵发性加剧
D.抗酸治疗无效的上腹痛
E.间歇性隐痛,进食后加剧
参考答案:B
23.What the boss really doubts is__________his employees will go on working in the company.
A.that
B.weather
C.when
D.whether
换料水(贮存)箱 refueling water (storage) tank