43. Astronomers can use a laser beam to gauge the distance between planets and other bodies in the universe. "Gauge" means_________. (A) synthesize. (B) conjecture. (C)measure. (D) enclose. (E) analyze.

44. If all the rainforests were ruthlessly destroyed, there would be nearly 40% less oxygen in the atmosphere, which means that the CO2 levels would increase much higher and thus the inhabitants on the planet would be endangered. "Ruthlessly" means_________. (A) mercilessly. (B) privately. (C) artfully. (D) gradually. (E) quickly.

43. Astronomers can use a laser beam to gauge the distance between planets and other bodies in the universe. "Gauge" means_________. (A) synthesize. (B) conjecture. (C)measure. (D) enclose. (E) analyze.

其他試題

43. Astronomers can use a laser beam to gauge the distance between planets and other bodies in the universe. "Gauge" means_________.
(A) synthesize.
(B) conjecture.
(C)measure.
(D) enclose.
(E) analyze.