下图是一滴血在显微镜视野中的示意图，其中具有止血和凝血作用的血细胞是
--I can’t solve the math problem because it is too difficult. What should I do? -- _________ ask the teacher for help?
— ? —I like action movies.
—— do you of the sports shows? ——They’re interesting.
What colour sweater do you like ,green ______ blue?
— does Jim to school? —By bus.
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