The 1986 Challenger space-shuttle ________ was caused by unusually low temperatures
A) expedition
B) controversy
C) dismay
D) disaster
A) expedition
B) controversy
C) dismay
D) disaster
第1题
If the boxer is no match to his challenger, it's easier to ______ his outcome.
A.predict
B.precede
C.prevail
D.preclude
第2题
Which of the following is true of the Glomar Challenger?
A.It is a type of submarine.
B.It is an ongoing project.
C.It has gone on over 100 voyages.
D.It made its first DSDP voyage in 1968.
第3题
第4题
A.if not given close examination, technology could be used to destroy our world
B.technology is a human creation, so we are responsible for it
C.technology usually goes wrong, if not controlled by man
D.being a human creation, technology is liable to error