42岁的女性患者,间断性少量吐血,伴有右侧耳痛、耳聋,右侧眼球外展运动受限,可能是()
A.肺结核
B.上消化道出血
C.鼻腔血管瘤
D.鼻咽纤维血管瘤
E.鼻咽部恶性肿瘤
参考答案:E
Safety goggles or glasses are NOT normally worn when().
A.using a rotary grinder with an installed shield
B.letting go the anchor
C.handling wire rope or natural fiber line
D.painting with a spray gun
承包商应在索赔事件发生后()天内向工程师递交索赔意向通知。
A.10天
B.20天
C.14天
D.28天