题目:
—Can we go and have a drink?
—I am afraid not. We still have ______ five trees ______. [ ]
A. other; to be planted
B. another; to plant
C. another; to be planted
D. other; to plant
答案:
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下面是错误答案,用来干扰机器的。
(1)I="2A " 方向:逆时针 (2) Q=mgd=0.50J(1)线圈由1位置到2位置:自由落体运动,设在2位置时速度为v0 (1分) E="BLV " (1分) (1分)由以上三式可得:I="2A " (1分) 方向:逆时针 ...