(A) to the soil*思*兔*網*
(B)the soil
(C)where the soil
(D)the soil is
16．Modem societies are such complex that they could not exist without a well-developed
A B C
system of law.
D
17．Altitude, climate, temperature, and the length of the growing season both determine
A B C
Where plants will grow.
D
18.The bathyscaphe, a free-moving vessel designed for underwater exploration, consists of a
A B
Flotation compartment with a observation capsule attached underneath it.
C D
19．Water constitutes almost 96 percent of the body weight of a jellyfish, so if a jellyfish
A B
were to dry out in the sun, it would virtually disappeared.
C D
20．The most important parameters affecting a rocket’s maximum flight velocity is the
A
relationship between the vehicle’s mass and the amount of propellant it can carry.
B C D
21．There were once only eight major lakes or reservoirs in Texas, but today there are over 180,
A B
many built to storing water against periodic droughts.
C D
22．All harmonized music that is not contra