对微循环血流起"总闸门"作用的结构是
A. 动静脉吻合
B. 毛细血管后微动脉
C. 微动脉
D. 真毛细血管
E. 毛细血管前微动脉
To be effective, the format and organization of your document are equally important.
A. 对
B. 错
The traditional paragraph format produces a word-wall document that is difficult to read.
A. 对
B. 错
Labeling means to group topically related information into units or chunks.
A. 对
B. 错
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