抗血吸虫病高效、低毒的药物是
A．吡喹酮B．氯喹C．酒石酸锑甲D．硝硫氰铵E．乙胺嗪
参考答案：A
______ his mother’s help , the little boy can call her ______13635322770
A．With , on
B．With, at
C．With , about
D．At, with
量水尺在油水间停留5s与停留20s，（）所引起的示值变化不应超过0.5mm。
