Backward somewhat technologically______we are for the moment, we have perfect faith in our
A. if
B. even though
C. that
D. as
出生时存在，以后逐渐消失的反射是
A. 结膜反射
B. 吞咽反射
C. 腹壁反射
D. 拥抱反射
E. 瞳孔反射
李老师在班级设立了“生日祝福墙每当有学生过生日时同学纷纷在祝福墙上留下祝福的话语，还互赠自制卡片。李老师的做法()
A. 不恰当，会加重学生负担
B. 不恰当，会助长物质攀比之风
C. 恰当，能让学生感受温暖
D. 恰当，能让学生提高消费意识
She can hardly avoid making mistakes in her homework, ______hard she tries.
A. for
B. as
C. how
D. however
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