选出句子中所包含的信息( )
A:People were angry with the players.
B:People were happy to join the players.
C:People were excited to see the players.
看拼音,写词语
cǎn huò
jiào xùn
jūn yún
jié shěnɡ
jī huǐ rén wánɡ
____
mǒu xiē
tǎn kè
pò suì
jiān ɡù
qīnɡ ér yì jǔ
按照题目要求作图:
(1)如图甲所示,小球静止在水面上,请画出小球的受力示意图.
(2)根据平面镜成像特点,在图乙中画出物体AB在平面镜MN中所成的像.
(3)根据图丙重通电螺线管的S极,标出磁感线方向,并在括号内标出电源的正极.
温度过高会使唾液淀粉酶永久失活,主要原因是高温破坏了该酶的