[单项选择]

It is surprising how many expressions that people use every day tame from the card game poker For ex- ample, you hear the expression "ace in the hole" used by many who would never think of going near a poker table. An ace in the hole is any argument, plan or thinking kept hidden until needed, especially when it can turn failure into success.
In poker and most card games, the ace is the highest and most valuable card. It is often a winning card. In one kind of poker game, the first card to each player is dealt face down. A player does not show-this card to the other players. The other cards are dealt face up with the players betting money each time they receive another card. No one knows until the end of the game whose hidden card is the winner. Often, the "ace in the hole" wins the game.
Smart card players, especially those who play for large amounts of money, closely watch the person who deals the cards. They are watching to make sure he is de
A. to cheat him
B. to guess his under thoughts
C. for him to keep secret
D. for him to mislead others

It is surprising how many expressions that people use every day tame from the card game poker For ex- ample, you hear the expression "ace in the hole" used by many who would never think of going near a poker table. An ace in the hole is any argument, plan or thinking kept hidden until needed, especially when it can turn failure into success.
In poker and most card games, the ace is the highest and most valuable card. It is often a winning card. In one kind of poker game, the first card to each player is dealt face down. A player does not show-this card to the other players. The other cards are dealt face up with the players betting money each time they receive another card. No one knows until the end of the game whose hidden card is the winner. Often, the "ace in the hole" wins the game.
Smart card players, especially those who play for large amounts of money, closely watch the person who deals the cards. They are watching to make sure he is de
A. he has a difficulty in responding to other people’s maneuvers
B. he is a person who is fond of playing card games
C. he might lose a game because he forgets his card
D. he may win a game at the last moment when he shows his secret skills