30. (单选题) In this passage it is NOT stated that （）.(本题1.0分) A、 astronauts have landed on the moon B、 Boeing 747 can fly thousands of miles C、 needle-shaped noses make jets speed up easier. D、 astronauts have landed on Mars.

30. (单选题) In this passage it is NOT stated that （）.(本题1.0分)
A、 astronauts have landed on the moon
B、 Boeing 747 can fly thousands of miles
C、 needle-shaped noses make jets speed up easier.
D、 astronauts have landed on Mars.

出自：河南城建学院大学英语四

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