Today the energy problem becomes critical. It ____ an immediate solution.

A． calls on B calls for C calls up D calls at

[单选题]If it becomes necessary for a stand-on vessel to take action to avoid collision，she shall NOT，if possible，().A．Decrease speedB．Increase speedC．Turn to port for a vessel on her own port sideD．Turn to starboard for a vessel on her own port side

[单选题]The cooler as the liquid becomes, （）.A . the faster it will evaporateB . the slower it will condenseC . the slower it will evaporateD . the faster it will flow

[单选题]When the result of an operation becomes larger than the limits of the representation， (75) occurs.(75) A．overdoseB．overflowC．overdraftD．overexposure

[单选题]C．onversation becomes weaker in a society that spends so much time listening and being talked to _______ it has all but lost the will and the skill to speak for itself.A． as B which C that D what

[单选题]The author suggests that a man becomes a philosopher when he ______.A． studies philosophy as a subjectB． collects all the factsC． realizes obvious truthsD． seeks a meaning for life

[单选题]When the result of an operation becomes larger than the limits of the representation,______ occurs.A．overdoseB．overflowC．overdraftD．overexposure

[单选题]It soon becomes clear that the interior designer’s most important basic _____ is the function of the particular space. For example, a theater with poor sight lines, poor sound-shaping qualities, and too few entries and exits will not work for its pur

[单选题]When the result of an operation becomes larger/hall the limits of the representation,(75)occurs.A．overdoseB．overflowC．overdraftD．overexposure

[单选题]When the result of an operation becomes larger than the limits of the representation,(75)occurs.A．overdoseB．orerfnowC．overdraftD．overeposure

[单选题]Solar energy is man's most important energy source. As the name implies, so