葛根可使血压升高，高血压患者应慎用（）
参考答案：错
若物体振动波形的数学表达式为x=20sin（628t+π/3），则其振动的峰值是（）.
—Are you go hiking this weekend?
—______. [ ]
A. It depends on the weather
B. With pleasure
C. I didn't mind
D. That sounds interesting
