题目内容

现场实验的优点是容易保持实验结果的内部有效性。()

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Now, theres absolutely no question in any objective observers mind that entry to Oxford and Cambridge is ______ competitive.

A. finely
B. firmly
C. fiercely
D. flexibly

On our vacation we ______ an interesting antique store.

A. chanced upon
B. concentrated upon
C. counted upon
D. congratulated upon

Spanish women ______ just 4.1% of corporate boards, according to a study by the European Professional Womens Network.

A. make off
B. make for
C. make out
D. make up

If you dont eat a more ______ dinner, youll be hungry later on.

A. vast
B. considerable
C. resourceful
D. substantial

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