《地面水环境质量标准》将水域划分为五类,其中()适用于集中式生活饮用水水源地二级保护区().
A.Ⅰ类
B.Ⅱ类
C.Ⅲ类
D.Ⅳ类
E.Ⅴ类
参考答案:C
.
The woman hurried to the airport, _________ that the plane had taken off.
A.only being told
B.only to be told
C.only to tell
D.only having told
女,58岁,近半年来自觉心前区阵发性疼痛,常在休息或清晨时发作,持续时间15分钟,含服硝酸甘油后缓解,疼痛发作时,心电图胸前导联ST段抬高,运动负荷试验阴性,其诊断为()。
A.初发型心绞痛
B.卧位型心绞痛
C.稳定型心绞痛
D.变异型心绞痛
E.恶化型心绞痛