皮皮学，免费搜题
登录
搜题
【简答题】
计算机硬件的五大基本构件包括： 、运算器、存储器、输入设备、输出设备。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The relaxation of skeletal muscle relies on the activity of the ________, which decreases cytoplasmic calcium concentration.
A.
ryanodine receptor
B.
dihydropyridine (DHP) receptor (L-type calcium channel)
C.
acetylcholine receptor
D.
Ca2+ ATPase
【简答题】下列不属于Word窗口组成部分的是( )
【简答题】Besides calcium and iron, athletes also need______which will help them access energy and pr them from getting ill.
【单选题】We may infer that 'iodine, fluoride and calcium' are______.
A.
substances which act positively or negatively on man's health
B.
harmful substances in the water supply
C.
substances which help provide breeding places for pests
D.
substances contributory to good health
相关题目：