苯泄漏事故的处置程序与措施为:接警出动、个人防护、现场询情、侦察检测、排除险情、现场急救、作好灭火准备和清理移交。()
参考答案:对
读短文,判断正(√)误(×)。
Hi! My name is Lily. I have seven markers. They are yellow, red, orange, blue, purple, green and pink.
My favourite colour is yellow.
( ) 1. I have ten markers.
( ) 2. Red is my favourite colour.
( ) 3. I have a yellow marker.
( ) 4. I have a black marker.
( ) 5. My name is Lucy.
简述对雌性动物采集精液调教方法及注意问题。