题目:
胎儿窘迫、缺氧继续发展时,下列哪项是不恰当的()
A.胎儿在宫内呼吸运动加强
B.细胞膜通透性加大
C.胎儿血pH值下降
D.胎儿血钾下降
E.胎儿血钾升高
答案:
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答案:B题目分析:考查主语从句和强调句:首先第二个填that为强调句,It is ...that...中的that 为固定搭配,去掉It is ...that...来看,这是句子为That he often fails in exams makes his parents...