摘要：31．It is said that the early European playing-cards for entertainment and education. A．were being designed B．have designed C．have been designed D．were designed
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It is said that the early European playing-cards ______ for entertainment and education.
| A．were designed | B．have designed | C．have been designed | D．were being designed |
.It is said that the early European playing-cards ______for entertainment and education.
|
A．were being designed |
B．have designed |
C．have been designed |
D．were designed |
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.It is said that the early European playing-cards ______for entertainment and education.
| A．were being designed | B．have designed | C．have been designed | D．were designed |