既能止痛，又能利水的祛风湿药是（）
A. 防己
B. 秦艽
C. 桑寄生
D. 五加皮
E. 蕲蛇
（）ofthefollowingneednotbeenteredintheofficiallogbook?
A. Thetestingoftheinternalcombustionenginedrivenemergencygeneratoratleastonceeachmonththevesselisnavigated
B. Thetestingofstoragebetteriesforemergencylightingandsystemsonceeach6monthsthevesselsisnavigated
C. Theactualdraftwhenthevesselarrivesinsaltwaterafterdepartmentaport
D. Thetestingoftheline-throwingapplianceonceevery3months
（）itraintomorrowmorning,theloading（）.
A. Should/willbepostponed
B. If/shallbepostponed
C. Should/wouldbepostponed
D. If/hastobepostponed
正序电压故障点处最低，沿线向电源方向（）。
A. 降低
B. 升高
C. 先降低后升高
D. 先升高后降低
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