若sinα＜0且tanα＞0，则α是（ ）
A：第一象限角
B：第二象限角
C：第三象限角
D：第四象限角
I w____ to Qingdao with my parents last summer holiday. We t____a plane there. We went to the beach. It was very b ____. I like swimming very much. I s____in the sea. My mum took many p____ there. We had a good time.
43＋38=____
81－38=____
38＋43=____
81－43=____
