27. In its life expectancy, although in most other things, the Sun is a typical star.
A B C D
03.01
1. crumbles readily when exposed to a moist, acid atmosphere, but the stone is durable in a dry atmosphere.
(A) The surface of marble is
(B) The surface of marble, which
(C) Although the surface of marble
(D) The surface of marble
8. Connecticut was the fifth of the original thirteen states the Constitution of the United States.
(A) ratified
(B) ratify
(C) to ratify
(D) have ratified
17. Titanium has the strength of steel but weighs half only as much, hence its advantage for use in aircraft.
A B C D
35. In the initial planning for theaters, auditoriums, but any room intended primarily
A B C
for listening, acoustics is a major consideration.
D
40. Basalt, which composes most of the ocean floor, is a dark-grey rock rich in iron