采用气焊焊接中碳钢钢管三通时,要先预热到()。
A、50~100℃
B、150~200℃
C、250~300℃
D、350~400℃
参考答案:B
Fishing is his favorite hobby, and _____. [ ]
A. he'd like to collect coins as well
B. he feels like collecting coins, too
C. to collect coins is also his hobby
D. collecting coins also gives him great pleasure
女性,63岁,右下腹及脐周隐痛3年,渐渐清瘦,近两个月来常有低热,体格检查发现右下腹可触及一6cm×4cm大小的包块,较硬,尚可推动,压痛,锁骨上及腹股沟区来触及肿大淋巴结,结合其他检查结果,该患者被确诊为右侧结肠癌。
该患者最可能同时伴有的症状是()
A.恶心、呕吐
B.贫血、低热
C.尿频、尿痛
D.肠梗阻、绞痛
E.疼痛向右肩部放散