第2题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. The picnic will probably be cancelled. B. He’s glad that the picnic is in this weekend. C. It’s not going to rain. D. He knows where to hold picnic. 参考答案:A 答案解析:[听力原文]
W: I’ve just heard there are going to be showers on and-off all weekend.
M: There goes the
第25题: [单项选择]胃肠型食物中毒的病原最主要的是() A. 沙门菌属、大肠埃希菌、金黄色葡萄球菌、卡他莫拉菌 B. 沙门菌属、金黄色葡萄球菌、大肠埃希菌、痢疾杆菌 C. 大肠埃希菌、肺炎链球菌、沙门菌属、金黄色葡萄球菌 D. 金黄色葡萄球菌、大肠埃希菌、流感嗜血杆菌、痢疾杆菌 E. 痢疾杆菌、变形杆菌、大肠杆菌、凝固酶阴性葡萄球菌 参考答案:B