—Did you make it at last?
—Yes. But for your help , it ________a serious loss.
A:would cause
B:must have caused
C:would have caused
D:may cause
请回答下列问题:
下列诗句能体现自强精神的有( )①千磨万击还坚劲,任尔东南西北风 ②长风破浪会有时,直挂云帆济沧海③毕竟西湖六月中,风光不与四时同 ④路漫漫其修远兮,吾将上下而求索