题目

求下列各式中的的值(1) (2)(3) (4)  答案:(1)(2)x=19或x=-13(3)x=-7(4)或解析:(1)                        (2)                            x-3=±16                          x=19或x=-13(3)                    (4)       x+3=-4                             xJumping out of ______ airplane at ten thousand feet is quite ______ exciting experience. A./; anB./; theC.an; anD.the; the
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