问题
选择题
Some time after the rockets and the space shuttle are _____, the rocket will _____ the space shuttle and ____ the sea.
A．set sail; broadcast; drop in
B．ruled out; orbit; show up
C．stepped up; survive; fall for
D．launched; separate from; fall into
答案
答案：D
考查短语辨析。set sail“起航”；rule out“排除”；step up“加速”；launch“发射”；orbit“绕轨道运行”。句意“火箭和飞船在发射一段时间之后，火箭会和飞船分离，落入海中。”故选D。