What is the main function of the heart? A. To pump blood. B. To digest food. C. To breathe air. D. To think. 相关知识点: 试题来源: 解析 A。本题考查对心脏功能的了解。心脏的主要功能是泵血,将血液输送到身体各个部位,B 选项消化食物是消化系统的功能,C 选项呼吸空气是呼吸系统的功能,D ...
1. They all needfood all the time. No one had seen cells beforethe invention of microscope. No one couldmake pictures of cells because no one couldsee them. What makes the blood move roundthe body? The heart does. The heart is a pump.It pumps the blood and sends it round thebody....
What is the main function of the heart? A. To filter blood. B. To pump blood. C. To produce blood. D. To store blood. 相关知识点: 试题来源: 解析 B。心脏的主要功能是把血液输送到身体各处,所以答案是 B。A 选项是肾脏的功能;C 选项是骨髓的功能;D 选项是血管的功能。
What makes the blood(13)round the body? The heart send sit round.(14)man's heart is the size of his shut (合上)hand. The heart is pump (泵) . It pumps blood and sends it round the body. The heart(15)four rooms with doors between them. It pumps blood in and out(16)these do...
题目What is the main function of the heart? A. To pump blood. B. To digest food. C. To filter waste. D. To produce hormones. 相关知识点: 试题来源: 解析 A。本题考查对人体器官功能的基本常识。心脏的主要功能是泵血,将血液输送到身体各个部位,A 选项符合常识。B 选项消化食物是消化系统的...
题目What is the main function of the heart? A. to think B. to breathe C. to pump blood D. to digest food 相关知识点: 试题来源: 解析 C。心脏的主要功能是泵血。选项 A 是大脑的功能;选项 B 是肺的功能;选项 D 是消化系统的功能。
C.from a blood bank D.from a man’s heart 4.___ makes the blood go on moving round the body in a stream.[ ] A.The heart B.The lungs C.The cells D.The pump 5.This article tells us about ___.[ ] A.a stream of blood B.the use of the heart C....
题目What is the function of the heart? A. To digest food B. To pump blood C. To produce hormones D. To filter waste 相关知识点: 试题来源: 解析 B。解析:心脏的功能是泵血。消化食物是消化系统的功能,A 错误;产生激素是内分泌系统的功能,C 错误;过滤废物是肾脏的功能,D 错误。
What is the main function of the heart? A. To digest food. B. To pump blood. C. To filter waste. D. To produce hormones. 相关知识点: 试题来源: 解析 B。心脏的主要功能是泵血。选项 A 消化食物是消化系统的功能;选项 C 过滤废物主要是肾脏的功能;选项 D 产生激素有内分泌腺等负责。
What makes the blood (13) round the body? The heart send sit round. (14) man's heart is the size of his shut (合上)hand. The heart is pump (泵) . It pumps blood and sends it round the body. The heart (15) four rooms with doors between them. It pumps blood in and out ...