A:甲物质可能抑制该酶的活性
B:该酶比较适合在40℃的环境下起作用
C:该酶在中性环境下的催化效率比碱性环境高
D:该酶在作用35 min后便失去活性
下列属于合成纤维的是( )
读等高线地形图,关于C处地形部分说法正确的是( )
受精卵的形成场所和胚胎发育的场所分别是( )
My House
I am Jenny. Look! This is my house. What's in the house? Let me show you the rooms. This is the kitchen. Here is the bathroom. That is the living room. Here is my bedroom. That is Danny's bedroom. His bedroom is very nice.