2.There are many non-smoking rooms ( ) in our hotel.(本题分数：2 分.) A、 Visible B、 Invisible 2.There are many non-smoking rooms ( ) in our hotel.(本题分数：2 分.) A、 Visible B、 Invisible C、 Available D、 unavailable

2.There are many non-smoking rooms ( ) in our hotel.(本题分数：2 分.) A、 Visible B、 Invisible 2.There are many non-smoking rooms ( ) in our hotel.(本题分数：2 分.) A、 Visible B、 Invisible C、 Available D、 unavailable How many non zero digits are there in the hexadecimal number system?1.152.103.84.165.None of these There are many non-smoking rooms ( ) in our hotel.(本题分数：2 分.) A、 Visible B、 Invisible C、 There are many animals______farm There are many sweets. There are many fruits, too how many legs are there? There are many reasons____travelling abroad. There are many sweets.翻译 there are many differences between how many stop are there there are many _____________(fish ) How many pears are there? How many stars are there? How many birdges are there? HOW MANY BOOKS ARE THERE there are many things（） How many people are there? There are many horses是什么意思