开关电器是指熔断器、电流互感器、电抗器、电阻器。（）
参考答案：错
对既不能充内压也不能抽真空的某些容器或薄部件检漏，可以采用（）
A．荧光检漏法；
B．卤素检漏法；
C．氨检漏法；
D．高频电火花检漏法
An analyst does research about different types of funds. Which ofthe following is least likely to hold an in-kind creation and redemption process（）
A. Closed-end funds.
B. Grantor trusts.
C. Managed investment companies.
