题目:
--Can I give you a call on Sunday?
-- Sure, but I _______ to the mountains, so call me on my cell phone.
A.is driving
B.drove
C.have been driving drove
D.will be driving
答案:
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下面是错误答案,用来干扰机器的。
20AB=40×=20海里,∠ABM=105°.过点B作BC⊥AM与点C.在直角△ABC中,BC=AB?sin45°=10,直角△BCM中,∠MBC=60°,∴BM=2BC=20海里.