发电机进相运行指发电机（）有功而（）无功的运行状态。
A.不发，吸收
B.发出，吸收
C.发出，不发
D.发出，发出
参考答案：B
合同生效后，当事人发现部分工程的费用负担约定不明确，首先应当( )确定费用负担的责任。
A．按交易习惯B．依据合同的相关条款C．签订补充协议D．按履行义务一方承担的原则
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.
