Why are boys more at risk, especially the overweight boys?
A.Boys like vigorous sports, so their heart bear more burden.
B.Boys don"t like go to hospital to receive ultrasound treatment.
C.Their hearts are usually too big to pump blood very well.
D.Their hearts are over worked to support their bodies if they are overweight.
请帮忙给出正确答案和分析,谢谢!
提高产奶量的措施有哪些?
人体实验必须坚持的原则中不包括()
A、知情同意原则
B、经济利益原则
C、科学对照原则
D、医学目的原则
E、维护患者利益原则
请帮忙给出正确答案和分析,谢谢!
Why did the man need to see Dean Williams?
A.To get medical treatment.
B.To inquire about his results of the paper.
C.To find out the exam schedule.
D.To get an extension for a paper.
请帮忙给出正确答案和分析,谢谢!
如何降低尿素在瘤胃降解率?
简述新疆细毛羊特点。
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