单选题 Questions 15-18
Classify the following features as characterizing.

A. Vicki L. Hansen
B. Alfred Wegener
C. Both of Vicki L. Hansen and Alfred Wegener
D. Neither of Vicki L. Hansen nor Alfred Wegener

单选题 believe that the identification of species has proved the unification of continents

A
B
C
D

【正确答案】 B

【答案解析】

单选题 explained the reason for continents movements

A
B
C
D

【正确答案】 C

【答案解析】

单选题 the initial period when the continents moved

A
B
C
D

【正确答案】 A

【答案解析】

单选题 think that continents were shaped from collision against ocean floor

A
B
C
D

【正确答案】 D

【答案解析】