皮皮学，免费搜题
登录
搜题
【简答题】
船舶三相交流同步发电机理想的准同步并车的条件是____________、____________、____________和相等或一致。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】It can be inferred from the text that the author believes that _____.
A.
nationwide application of anti-pollution devices can finally prevent cancer.
B.
tough legislation is needed to set lower limits of worker exposure to harmful chemicals.
C.
more research is required into the causes of cancer before further progress can be made.
D.
industrialization must be slowed down to prevent further spread of cancer-causing agents.
【简答题】断食时间一般牛、羊宰前禁食 h ,猪 h ,家禽 h 。为了防止屠宰畜禽倒挂放血时胃内容物从食道流出污染胴体,宰前 h 应停止给水 。