单项选择题

A. his experience with many cancer patients B. his moth……

Dr. Smith’s motivation to do the research comes from ______.

A. his experience with many cancer patients B. his mother’s death
C. his conversation with a senior physician
D. his experience as an oncology trainee

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填空题that→where

单项选择题The book on the fictional town of Mariposa presumably ______.

单项选择题NBAC will leave the issue of embryo research undiscussed because ______.

A. embryo research is just a current development of cloning
B. the health of the child is not the main concern of embryo research
C. an embryo’s life will not be endangered in embryo research
D. the issue is explicitly stated and settled in the law

单项选择题Eat, eats, ate, eaten, eating share the same basic meaning and grammatically they are the inflectional variants in the paradigm of the verb EAT. Word used in this sense is known in linguistics as

A. word.
B. word form.
C. lexeme.
D. morpheme.

单项选择题Emily Dickinson wrote many short poems on various aspects of life. Which of the following is NOT a usual subject of her poetic expression

A. Religion and immortality.
B. Life and death.
C. Love and marriage.
D. War and peace.