根据国际储备的性质,所有可兑换货币所表示的资产都可成为国际储备。()
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What should you do with your emergency position indicating radio beacon if you are in a lifeboat during storm conditions ().
A. Bring it inside the liferaft and leave it on
Bring it inside the liferaft and turn it off until the storm passes
C. Leave it outside the liferaft and leave it on.
D. Leave it outside the liferaft and turn it off
使用金属工具、模具后,要及时清理,要擦干净,()。
A. 以免老化
B. 以免生锈
C. 以免黏粘
D. 以免开裂
一般教室都有两个门,为容纳更多学生可将后门上锁或用课桌堵上。()