目前收费软件界面上，能显示的外设设备示意图有哪些（）。
A.网络标志
B.读写器图标
C.打印机图标
D.线圈
参考答案：A, B, C, D
----What did you say just now ?
----I asked you________.
A．why you wanted to become a nurse
B．how long had you stayed in the town
C．whether was there a bank near our school
D．when will you go shopping with me
男性，50岁。胃溃疡病史10年，近2个月来上腹痛加重，疼痛失去节律，经多种药物治疗无效。查体：浅表淋巴结未触及肿大，腹平软，上腹部压痛，可触及包块
首选的处理方法是（）
A.口服质子泵抑制药
B.定期随访
C.手术治疗
D.化疗
E.放疗
