未知题型
A、氮B、磷C、砷D、锑正确答案：氮
卤族元素中，哪一种元素的单质在常温下是液态？
未知题型卤族元素中，哪一种元素的单质在常温下是液态？
碘单质在四氯化碳中的颜色为：
未知题型碘单质在四氯化碳中的颜色为：
A：It sounds wonderful. Do I have to sign a lease? How m...
单项选择题A：It sounds wonderful. Do I have to sign a lease? How much should I pay? B：Yes, it’s a lease. And $ 200 a week with one month refundable deposit. A. one year B. one-year
