如图,已知Rt△ABC中,∠C=90°,BC=3,AC=4,则sinA的值为( )
A:34
B:43
C:35
D:45
实验室配制50g溶质质量分数为6%的硝酸钾溶液。现准备如下实验用品,请回答下列问题:
Linda doesn't like Japan, because she thinks it's too _________.
一个人如果只靠个人学习而没有朋友,就很难得到广博的知识。下列能够恰当反映这一观点的是( )
We all have a sense of n____ pride while our country is becoming stronger and stronger.