It is so difficult to the bottom of the ocean because some parts are very deep.
A: explore
B: know
C: develop
D: observe
A: explore
B: know
C: develop
D: observe
举一反三
- It is so difficult to ______ the bottom of the ocean because some parts are very deep.
- It is so difficult to ________ the bottom of the ocean because some parts are very deep. A: explain B: exploit C: explore D: accept
- It is so difficult to __________ the bottom of the ocean because some parts are very deep. A: explore B: pose C: inherit D: transmit
- It is so difficult to ______the bottom of the ocean because some parts are very deep. A: deficient B: deficit C: explore D: exposure
- It is so difficult to __________ the bottom of the ocean because some parts are very deep. A: explore B: discover C: implore D: deplore