__________,<br/>explorers could never have found the cave. A: But for the<br/>fissure had been spotted B: If not the<br/>fissure had been spotted C: Had the fissure<br/>not been spotted D: Had not the<br/>fissure been spotted

经过scalene fissure的结构有：

Any public<br/>_____ of this information would be very damaging to the company. A: composure B: acupressure C: disclosure D: fissure

volcano is to lava as () A: geyser is to water B: fault is to tremor C: glacier is to fissure D: avalanche is to snow E: cavern is to limestone

Which of the followings is the predilection site of the caries?() A: the developmental groove B: the fissure C: the accessory groove D: the fossa E: all of the above