与左心房相连通的血管是[ ]
A.肺动脉
B.肺静脉
C.主动脉
D.上、下腔静脉
答案:B
Fill in the blanks with the given words. 用所给单词的适当形式填空。
1. He (catch) an apple down from the tree.
2. She gets a bunch (束) of (flower) from him.
3. Li Ming is (shop) in a big department store.
4. Danny (hurt) his hand yesterday.
5. It will be a warm, (sun) day tomorrow.
按照学习迁移内容的抽象与概括化水平进行划分,可以分为()。
A.水平迁移与垂直迁移
B.同化性迁移与顺应性迁移
C.普通迁移与特殊迁移
D.顺向迁移与逆向迁移