受精卵能发育形成一个完整个体的潜能为()。
A. 单能性
B. 多能性
C. 全能性
D. 发育性
E. 专能性
根据录音，选择合适的答案（） 查看材料
A. Parts of Australia and Russia．
B. Parts of Canada and southern Europe．
C. Parts of North America and South Africa．
D. Parts of Western Europe and Asia．
在发育过程中细胞核的全能性()。
A. 逐渐变窄
B. 保持不变
C. 逐渐增强
D. 不确定
E. 先变窄，再逐渐增强
根据录音，选择合适的答案（） 查看材料
A. He doesn"t know what he likes．
B. He hasn"t made the f"mal decision yet．
C. He needs advice from the admissions counselor．
D. He wants to change his major in his first year．
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