The study is a genome-wide analysis conducted （）.

A.unless,don’t study

B.unless,study

C.if,study

D.if,not study

A. others

B. other

C. another

D. the other

A.studying

B.study

C.to study

D.having studied

A.横断研究(cross-sectional study)

B.纵向研究（logitudinal study）

C.回顾研究（retrospective study）

D.前瞻研究（prospective study）

A.study of graphs

B.study of geometry

C.study of the land, seas, climate, towns and population

D.study of grammar

In short, you should study hard for abetter future.(翻译)

A.The study of a foreign language is not difficult

B.The study of a foreign language is short of easy.

C.The study of a foreign language is too easy.

D.The study of a foreign language is necessarily far from easy.

He was made ______ hard.

A) to study B) study C) studying D) studied