细胞内很多化学反应都是在生物膜上进行的，如图1表示真核细胞中4种生物膜上发生的化学变化示意图1，相关叙述不正确的是 （    ）

Do you know how I can improve my ____ (speak)?

“李氏果”是科学家在我国辽宁首次发现的迄今最早的双子叶被子植物化石．判断“李氏果”是被子植物的主要依据是（　　）

根据短文内容，判断正误。
    A man has a cat. He likes her very much. At mealtime the cat sits at the table with him. The man eats with a knife and a fork(叉), but the cat eats from her plate.Sometimes, when she finishes her dish, her master（主人） will give her a little his food. He shares(分享) his meal with her. One day the cat is not at the table at mealtime.
    “Ah! Where is my cat?” asks the man. His wife says, “Can't you eat without her?”
    So the meal begins without the cat. Before lunch is over, the cat rushes（冲）into the room and jumps into the chair quickly. She has two mice in her mouth, and before anyone can stop her, she drops(扔下) one into her own plate, and the other into her master's plate.
    “Dear me!” cries the woman, “A mouse is in your plate!”
    “Hush(安静)!” says her husband. “This shows that she is a nice cat. She knows what friendship is.
    She hopes I share her dinner as I often share mine with her.

悬浊液、乳浊液、溶液和胶体都是