Basalt, (which )composes (most) of the ocean (floor), is a dark-grey rock (rich )in iron and magnesium than most surface rocks.()
A. which
B. most
C. floor
D. rich
查看答案
Candies may be made by (repeatedly dipping) wicks in tallow, by molding, (nor) by pouring (melted wax) over the wicks and rolling them (into) shape.()
A. repeatedly dipping
B. nor
C. melted wax
D. into
心理活动的内在一致性是指( )。
A. 知、情、意之间保持协调
B. 个体经验系统层次清晰、运用得当
C. 合理运用以往经验处理当前的事务
D. 能正确认识现实和适应环境
According to the passage, which of the following activities is characteristic of the early part of the reproductive cycle of birds()
A. Selecting a mate
B. Collecting nest-building, materials
C. Playing with nest-building materials
D. Building a nest
() 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