低钙血症时出现
A．明显口渴B．脑水肿，颅内压增高C．Chvostek和Trousseau征阳性D．肌无力，疲乏软弱E．呼吸深快
参考答案：C
Since writing home to their parents for money, they had lived ________hope.
A．in
B．for
C．on
D．through
高强螺栓终拧后外露丝扣不得小于（）扣。
A.1
B.2
C.3
D.4
