单项选择题

A good title for this passage is （）.

A．Getting Blood and Plasma
B．Special Blood and Colors
C．Human Blood Types
D．The Blood Bank of a Hospital

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热门试题

单项选择题

This passage suggests that the writer （）.

A．is easy to get along with
B．is never pleased with her neighbors
C．is unhappy with the life they are living
D．is good at observing and understanding people

单项选择题

22（）

A．violent
B．messy
C．peaceful
D．proper