12. 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

8. The author mentions "wheat and wheat flour" in line 22 in order to (A) show that Americans exported more agricultural products than they imported. (B) show the increase in the amount of wheat products exported. (C) demonstrate the importance of cotton among American export products. (D) demonstrate that wheat farming was becoming more profitable.

12. 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

其他試題

12. 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