【单选题】A tortoise can live ______ 150 years old. [ ]
【单选题】当感受器受到刺激时,刺激虽在持续,但其传入冲动频率已开始下降的现象,称为
【单选题】Smoking is bad for your health. You'd better _______. [ ]
【单选题】The Emergency Position Indicating Radio Beacon on a cargo vessel must be stowed ______
A.
in an inside passageway
B.
in an approved bracket
C.
so that it is accessible from the bridge of the vessel
D.
so that it will float free if the vessel sinks
【多选题】废旧物品再利用的手工制作促进了幼儿哪些方面的提高?
【单选题】Cut the apples and then put them the blender. [ ]
【单选题】They are too tired _____. [ ]
【单选题】Cut up the pear and then _____ . [ ]
【单选题】All the ingredients are in the bowl. Please mix _____. [ ]