问题
选择题
Born into a family with three brother, David was ____to value the sense of sharing.
A．brought up
B．turned down
C．looked after
D．held back
答案
答案：A
考查动词短语, brought up意为“养育”, turned down意为“拒绝或关小”, looked after意为“照顾”, held back意为“抑制, 阻碍”。
要在体内发育 ⑤运用基因工程技术 ⑥运用胚胎工程技术[ ]