单项选择题

监测围护体系内力常用的测试仪器主要是（）。

A.轴力计
B.频率仪
C.应变计
D.水准仪

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多项选择题

As far as contentious cases are concerned, which statements are correct?
A、Only states may be parties before the Court.
B、The Court is open to all member states of the United Nations.
C、Non-members of the United Nations can become parties to the Status on conditions set by the UN General Assembly on the recommendation of the Security Council.
D、Non-parties to the Status may bring themselves under the jurisdiction of the Court providing that they declare to accept the obligations of the Status and the UN Charter.

】安慰剂对照

答案：消除医务工作者和对照组的心理作用